diff --git a/src/Makefile.am b/src/Makefile.am
index 36da0796745..654b322d338 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -200,12 +200,12 @@ BITCOIN_CORE_H = \
   rpc/blockchain.h \
   rpc/client.h \
   rpc/mining.h \
-  rpc/net.h \
   rpc/protocol.h \
   rpc/rawtransaction_util.h \
   rpc/register.h \
   rpc/request.h \
   rpc/server.h \
+  rpc/server_util.h \
   rpc/util.h \
   scheduler.h \
   script/descriptor.h \
@@ -361,6 +361,7 @@ libbitcoin_server_a_SOURCES = \
   rpc/net.cpp \
   rpc/rawtransaction.cpp \
   rpc/server.cpp \
+  rpc/server_util.cpp \
   script/sigcache.cpp \
   shutdown.cpp \
   signet.cpp \
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index f352246b0d6..e4b8e9b6a93 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -312,6 +312,7 @@ public:
     /** Implement PeerManager */
     void StartScheduledTasks(CScheduler& scheduler) override;
     void CheckForStaleTipAndEvictPeers() override;
+    bool FetchBlock(NodeId id, const uint256& hash, const CBlockIndex& index) override;
     bool GetNodeStateStats(NodeId nodeid, CNodeStateStats& stats) const override;
     bool IgnoresIncomingTxs() override { return m_ignore_incoming_txs; }
     void SendPings() override;
@@ -1427,6 +1428,41 @@ bool PeerManagerImpl::BlockRequestAllowed(const CBlockIndex* pindex)
            (GetBlockProofEquivalentTime(*pindexBestHeader, *pindex, *pindexBestHeader, m_chainparams.GetConsensus()) < STALE_RELAY_AGE_LIMIT);
 }
 
+bool PeerManagerImpl::FetchBlock(NodeId id, const uint256& hash, const CBlockIndex& index)
+{
+    if (fImporting || fReindex) return false;
+
+    LOCK(cs_main);
+    // Ensure this peer exists and hasn't been disconnected
+    CNodeState* state = State(id);
+    if (state == nullptr) return false;
+    // Ignore pre-segwit peers
+    if (!state->fHaveWitness) return false;
+
+    // Mark block as in-flight unless it already is
+    if (!BlockRequested(id, index)) return false;
+
+    // Construct message to request the block
+    std::vector<CInv> invs{CInv(MSG_BLOCK | MSG_WITNESS_FLAG, hash)};
+
+    // Send block request message to the peer
+    bool success = m_connman.ForNode(id, [this, &invs](CNode* node) {
+        const CNetMsgMaker msgMaker(node->GetCommonVersion());
+        this->m_connman.PushMessage(node, msgMaker.Make(NetMsgType::GETDATA, invs));
+        return true;
+    });
+
+    if (success) {
+        LogPrint(BCLog::NET, "Requesting block %s from peer=%d\n",
+                 hash.ToString(), id);
+    } else {
+        RemoveBlockRequest(hash);
+        LogPrint(BCLog::NET, "Failed to request block %s from peer=%d\n",
+                 hash.ToString(), id);
+    }
+    return success;
+}
+
 std::unique_ptr<PeerManager> PeerManager::make(const CChainParams& chainparams, CConnman& connman, AddrMan& addrman,
                                                BanMan* banman, ChainstateManager& chainman,
                                                CTxMemPool& pool, bool ignore_incoming_txs)
diff --git a/src/net_processing.h b/src/net_processing.h
index 27bc40687a0..6c18e8ddfa2 100644
--- a/src/net_processing.h
+++ b/src/net_processing.h
@@ -42,6 +42,16 @@ public:
                                              CTxMemPool& pool, bool ignore_incoming_txs);
     virtual ~PeerManager() { }
 
+    /**
+     * Attempt to manually fetch block from a given peer. We must already have the header.
+     *
+     * @param[in]  id       The peer id
+     * @param[in]  hash     The block hash
+     * @param[in]  pindex   The blockindex
+     * @returns             Whether a request was successfully made
+     */
+    virtual bool FetchBlock(NodeId id, const uint256& hash, const CBlockIndex& pindex) = 0;
+
     /** Begin running background tasks, should only be called once */
     virtual void StartScheduledTasks(CScheduler& scheduler) = 0;
 
diff --git a/src/rest.cpp b/src/rest.cpp
index 3746fd752a5..2c0ead26c74 100644
--- a/src/rest.cpp
+++ b/src/rest.cpp
@@ -15,6 +15,7 @@
 #include <rpc/blockchain.h>
 #include <rpc/protocol.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <streams.h>
 #include <sync.h>
 #include <txmempool.h>
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index df580520164..9427a9fc596 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -19,6 +19,8 @@
 #include <hash.h>
 #include <index/blockfilterindex.h>
 #include <index/coinstatsindex.h>
+#include <net.h>
+#include <net_processing.h>
 #include <node/blockstorage.h>
 #include <logging/timer.h>
 #include <node/coinstats.h>
@@ -30,6 +32,7 @@
 #include <policy/rbf.h>
 #include <primitives/transaction.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <script/descriptor.h>
 #include <streams.h>
@@ -39,7 +42,6 @@
 #include <undo.h>
 #include <util/strencodings.h>
 #include <util/string.h>
-#include <util/system.h>
 #include <util/translation.h>
 #include <validation.h>
 #include <validationinterface.h>
@@ -64,54 +66,6 @@ static Mutex cs_blockchange;
 static std::condition_variable cond_blockchange;
 static CUpdatedBlock latestblock GUARDED_BY(cs_blockchange);
 
-NodeContext& EnsureAnyNodeContext(const std::any& context)
-{
-    auto node_context = util::AnyPtr<NodeContext>(context);
-    if (!node_context) {
-        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node context not found");
-    }
-    return *node_context;
-}
-
-CTxMemPool& EnsureMemPool(const NodeContext& node)
-{
-    if (!node.mempool) {
-        throw JSONRPCError(RPC_CLIENT_MEMPOOL_DISABLED, "Mempool disabled or instance not found");
-    }
-    return *node.mempool;
-}
-
-CTxMemPool& EnsureAnyMemPool(const std::any& context)
-{
-    return EnsureMemPool(EnsureAnyNodeContext(context));
-}
-
-ChainstateManager& EnsureChainman(const NodeContext& node)
-{
-    if (!node.chainman) {
-        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node chainman not found");
-    }
-    return *node.chainman;
-}
-
-ChainstateManager& EnsureAnyChainman(const std::any& context)
-{
-    return EnsureChainman(EnsureAnyNodeContext(context));
-}
-
-CBlockPolicyEstimator& EnsureFeeEstimator(const NodeContext& node)
-{
-    if (!node.fee_estimator) {
-        throw JSONRPCError(RPC_INTERNAL_ERROR, "Fee estimation disabled");
-    }
-    return *node.fee_estimator;
-}
-
-CBlockPolicyEstimator& EnsureAnyFeeEstimator(const std::any& context)
-{
-    return EnsureFeeEstimator(EnsureAnyNodeContext(context));
-}
-
 /* Calculate the difficulty for a given block index.
  */
 double GetDifficulty(const CBlockIndex* blockindex)
@@ -821,6 +775,58 @@ static RPCHelpMan getmempoolentry()
     };
 }
 
+static RPCHelpMan getblockfrompeer()
+{
+    return RPCHelpMan{"getblockfrompeer",
+                "\nAttempt to fetch block from a given peer.\n"
+                "\nWe must have the header for this block, e.g. using submitheader.\n"
+                "\nReturns {} if a block-request was successfully scheduled\n",
+                {
+                    {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The block hash"},
+                    {"nodeid", RPCArg::Type::NUM, RPCArg::Optional::NO, "The node ID (see getpeerinfo for node IDs)"},
+                },
+                RPCResult{RPCResult::Type::OBJ, "", "",
+                {
+                    {RPCResult::Type::STR, "warnings", "any warnings"}
+                }},
+                RPCExamples{
+                    HelpExampleCli("getblockfrompeer", "\"00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09\" 0")
+                + HelpExampleRpc("getblockfrompeer", "\"00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09\" 0")
+                },
+        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
+{
+    const NodeContext& node = EnsureAnyNodeContext(request.context);
+    ChainstateManager& chainman = EnsureChainman(node);
+    PeerManager& peerman = EnsurePeerman(node);
+    CConnman& connman = EnsureConnman(node);
+
+    uint256 hash(ParseHashV(request.params[0], "hash"));
+
+    const NodeId nodeid = static_cast<NodeId>(request.params[1].get_int64());
+
+    // Check that the peer with nodeid exists
+    if (!connman.ForNode(nodeid, [](CNode* node) {return true;})) {
+        throw JSONRPCError(RPC_MISC_ERROR, strprintf("Peer nodeid %d does not exist", nodeid));
+    }
+
+    const CBlockIndex* const index = WITH_LOCK(cs_main, return chainman.m_blockman.LookupBlockIndex(hash););
+
+    if (!index) {
+        throw JSONRPCError(RPC_MISC_ERROR, "Block header missing");
+    }
+
+    UniValue result = UniValue::VOBJ;
+
+    if (index->nStatus & BLOCK_HAVE_DATA) {
+        result.pushKV("warnings", "Block already downloaded");
+    } else if (!peerman.FetchBlock(nodeid, hash, *index)) {
+        throw JSONRPCError(RPC_MISC_ERROR, "Failed to fetch block from peer");
+    }
+    return result;
+},
+    };
+}
+
 static RPCHelpMan getblockhash()
 {
     return RPCHelpMan{"getblockhash",
@@ -2704,6 +2710,7 @@ static const CRPCCommand commands[] =
     { "blockchain",         &getbestblockhash,                   },
     { "blockchain",         &getblockcount,                      },
     { "blockchain",         &getblock,                           },
+    { "blockchain",         &getblockfrompeer,                   },
     { "blockchain",         &getblockhash,                       },
     { "blockchain",         &getblockheader,                     },
     { "blockchain",         &getchaintips,                       },
diff --git a/src/rpc/blockchain.h b/src/rpc/blockchain.h
index 0ad68a7fd69..99e744fdb30 100644
--- a/src/rpc/blockchain.h
+++ b/src/rpc/blockchain.h
@@ -19,7 +19,6 @@ extern RecursiveMutex cs_main;
 
 class CBlock;
 class CBlockIndex;
-class CBlockPolicyEstimator;
 class CChainState;
 class CTxMemPool;
 class ChainstateManager;
@@ -54,14 +53,6 @@ UniValue blockheaderToJSON(const CBlockIndex* tip, const CBlockIndex* blockindex
 /** Used by getblockstats to get feerates at different percentiles by weight  */
 void CalculatePercentilesByWeight(CAmount result[NUM_GETBLOCKSTATS_PERCENTILES], std::vector<std::pair<CAmount, int64_t>>& scores, int64_t total_weight);
 
-NodeContext& EnsureAnyNodeContext(const std::any& context);
-CTxMemPool& EnsureMemPool(const NodeContext& node);
-CTxMemPool& EnsureAnyMemPool(const std::any& context);
-ChainstateManager& EnsureChainman(const NodeContext& node);
-ChainstateManager& EnsureAnyChainman(const std::any& context);
-CBlockPolicyEstimator& EnsureFeeEstimator(const NodeContext& node);
-CBlockPolicyEstimator& EnsureAnyFeeEstimator(const std::any& context);
-
 /**
  * Helper to create UTXO snapshots given a chainstate and a file handle.
  * @return a UniValue map containing metadata about the snapshot.
diff --git a/src/rpc/client.cpp b/src/rpc/client.cpp
index c0c9e4f005e..a171972da3e 100644
--- a/src/rpc/client.cpp
+++ b/src/rpc/client.cpp
@@ -60,6 +60,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "getbalance", 1, "minconf" },
     { "getbalance", 2, "include_watchonly" },
     { "getbalance", 3, "avoid_reuse" },
+    { "getblockfrompeer", 1, "nodeid" },
     { "getblockhash", 0, "height" },
     { "waitforblockheight", 0, "height" },
     { "waitforblockheight", 1, "timeout" },
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
index 83eab327790..371de8050d9 100644
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -20,8 +20,8 @@
 #include <pow.h>
 #include <rpc/blockchain.h>
 #include <rpc/mining.h>
-#include <rpc/net.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <script/descriptor.h>
 #include <script/script.h>
diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp
index 2c05fc39fd9..3716d58d4bb 100644
--- a/src/rpc/misc.cpp
+++ b/src/rpc/misc.cpp
@@ -16,6 +16,7 @@
 #include <outputtype.h>
 #include <rpc/blockchain.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <scheduler.h>
 #include <script/descriptor.h>
diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp
index 021e6ae3206..bdcb339e144 100644
--- a/src/rpc/net.cpp
+++ b/src/rpc/net.cpp
@@ -9,7 +9,6 @@
 #include <chainparams.h>
 #include <clientversion.h>
 #include <core_io.h>
-#include <net.h>
 #include <net_permissions.h>
 #include <net_processing.h>
 #include <net_types.h> // For banmap_t
@@ -18,12 +17,12 @@
 #include <policy/settings.h>
 #include <rpc/blockchain.h>
 #include <rpc/protocol.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <sync.h>
 #include <timedata.h>
 #include <util/strencodings.h>
 #include <util/string.h>
-#include <util/system.h>
 #include <util/translation.h>
 #include <validation.h>
 #include <version.h>
@@ -42,22 +41,6 @@ const std::vector<std::string> CONNECTION_TYPE_DOC{
         "feeler (short-lived automatic connection for testing addresses)"
 };
 
-CConnman& EnsureConnman(const NodeContext& node)
-{
-    if (!node.connman) {
-        throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
-    }
-    return *node.connman;
-}
-
-PeerManager& EnsurePeerman(const NodeContext& node)
-{
-    if (!node.peerman) {
-        throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
-    }
-    return *node.peerman;
-}
-
 static RPCHelpMan getconnectioncount()
 {
     return RPCHelpMan{"getconnectioncount",
diff --git a/src/rpc/net.h b/src/rpc/net.h
deleted file mode 100644
index 7a4d8440ba4..00000000000
--- a/src/rpc/net.h
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2021 The Bitcoin Core developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#ifndef BITCOIN_RPC_NET_H
-#define BITCOIN_RPC_NET_H
-
-class CConnman;
-class PeerManager;
-struct NodeContext;
-
-CConnman& EnsureConnman(const NodeContext& node);
-PeerManager& EnsurePeerman(const NodeContext& node);
-
-#endif // BITCOIN_RPC_NET_H
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index bd56e584e18..a3583e7f12d 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -25,6 +25,7 @@
 #include <rpc/blockchain.h>
 #include <rpc/rawtransaction_util.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <script/script.h>
 #include <script/sign.h>
diff --git a/src/rpc/server_util.cpp b/src/rpc/server_util.cpp
new file mode 100644
index 00000000000..3fc35222e1f
--- /dev/null
+++ b/src/rpc/server_util.cpp
@@ -0,0 +1,80 @@
+// Copyright (c) 2021 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <rpc/server_util.h>
+
+#include <net_processing.h>
+#include <node/context.h>
+#include <policy/fees.h>
+#include <rpc/protocol.h>
+#include <rpc/request.h>
+#include <txmempool.h>
+#include <util/system.h>
+#include <validation.h>
+
+#include <any>
+
+NodeContext& EnsureAnyNodeContext(const std::any& context)
+{
+    auto node_context = util::AnyPtr<NodeContext>(context);
+    if (!node_context) {
+        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node context not found");
+    }
+    return *node_context;
+}
+
+CTxMemPool& EnsureMemPool(const NodeContext& node)
+{
+    if (!node.mempool) {
+        throw JSONRPCError(RPC_CLIENT_MEMPOOL_DISABLED, "Mempool disabled or instance not found");
+    }
+    return *node.mempool;
+}
+
+CTxMemPool& EnsureAnyMemPool(const std::any& context)
+{
+    return EnsureMemPool(EnsureAnyNodeContext(context));
+}
+
+ChainstateManager& EnsureChainman(const NodeContext& node)
+{
+    if (!node.chainman) {
+        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node chainman not found");
+    }
+    return *node.chainman;
+}
+
+ChainstateManager& EnsureAnyChainman(const std::any& context)
+{
+    return EnsureChainman(EnsureAnyNodeContext(context));
+}
+
+CBlockPolicyEstimator& EnsureFeeEstimator(const NodeContext& node)
+{
+    if (!node.fee_estimator) {
+        throw JSONRPCError(RPC_INTERNAL_ERROR, "Fee estimation disabled");
+    }
+    return *node.fee_estimator;
+}
+
+CBlockPolicyEstimator& EnsureAnyFeeEstimator(const std::any& context)
+{
+    return EnsureFeeEstimator(EnsureAnyNodeContext(context));
+}
+
+CConnman& EnsureConnman(const NodeContext& node)
+{
+    if (!node.connman) {
+        throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
+    }
+    return *node.connman;
+}
+
+PeerManager& EnsurePeerman(const NodeContext& node)
+{
+    if (!node.peerman) {
+        throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
+    }
+    return *node.peerman;
+}
diff --git a/src/rpc/server_util.h b/src/rpc/server_util.h
new file mode 100644
index 00000000000..ad3c149c900
--- /dev/null
+++ b/src/rpc/server_util.h
@@ -0,0 +1,27 @@
+// Copyright (c) 2021 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_RPC_SERVER_UTIL_H
+#define BITCOIN_RPC_SERVER_UTIL_H
+
+#include <any>
+
+class CBlockPolicyEstimator;
+class CConnman;
+class ChainstateManager;
+class CTxMemPool;
+struct NodeContext;
+class PeerManager;
+
+NodeContext& EnsureAnyNodeContext(const std::any& context);
+CTxMemPool& EnsureMemPool(const NodeContext& node);
+CTxMemPool& EnsureAnyMemPool(const std::any& context);
+ChainstateManager& EnsureChainman(const NodeContext& node);
+ChainstateManager& EnsureAnyChainman(const std::any& context);
+CBlockPolicyEstimator& EnsureFeeEstimator(const NodeContext& node);
+CBlockPolicyEstimator& EnsureAnyFeeEstimator(const std::any& context);
+CConnman& EnsureConnman(const NodeContext& node);
+PeerManager& EnsurePeerman(const NodeContext& node);
+
+#endif // BITCOIN_RPC_SERVER_UTIL_H
diff --git a/src/test/fuzz/rpc.cpp b/src/test/fuzz/rpc.cpp
index 790421d60cc..44b98f78521 100644
--- a/src/test/fuzz/rpc.cpp
+++ b/src/test/fuzz/rpc.cpp
@@ -114,6 +114,7 @@ const std::vector<std::string> RPC_COMMANDS_SAFE_FOR_FUZZING{
     "getblockfilter",
     "getblockhash",
     "getblockheader",
+    "getblockfrompeer", // when no peers are connected, no p2p message is sent
     "getblockstats",
     "getblocktemplate",
     "getchaintips",
diff --git a/src/validation.cpp b/src/validation.cpp
index 5ab90c2f1ae..7efd176e00d 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -3407,6 +3407,7 @@ bool CChainState::AcceptBlock(const std::shared_ptr<const CBlock>& pblock, Block
     // This requires some new chain data structure to efficiently look up if a
     // block is in a chain leading to a candidate for best tip, despite not
     // being such a candidate itself.
+    // Note that this would break the getblockfrompeer RPC
 
     // TODO: deal better with return value and error conditions for duplicate
     // and unrequested blocks.
diff --git a/test/functional/rpc_getblockfrompeer.py b/test/functional/rpc_getblockfrompeer.py
new file mode 100755
index 00000000000..e841cba70e4
--- /dev/null
+++ b/test/functional/rpc_getblockfrompeer.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+# Copyright (c) 2020 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test the getblockfrompeer RPC."""
+
+from test_framework.authproxy import JSONRPCException
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+    assert_equal,
+    assert_raises_rpc_error,
+)
+
+class GetBlockFromPeerTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 2
+
+    def setup_network(self):
+        self.setup_nodes()
+
+    def check_for_block(self, hash):
+        try:
+            self.nodes[0].getblock(hash)
+            return True
+        except JSONRPCException:
+            return False
+
+    def run_test(self):
+        self.log.info("Mine 4 blocks on Node 0")
+        self.generate(self.nodes[0], 4, sync_fun=self.no_op)
+        assert_equal(self.nodes[0].getblockcount(), 204)
+
+        self.log.info("Mine competing 3 blocks on Node 1")
+        self.generate(self.nodes[1], 3, sync_fun=self.no_op)
+        assert_equal(self.nodes[1].getblockcount(), 203)
+        short_tip = self.nodes[1].getbestblockhash()
+
+        self.log.info("Connect nodes to sync headers")
+        self.connect_nodes(0, 1)
+        self.sync_blocks()
+
+        self.log.info("Node 0 should only have the header for node 1's block 3")
+        for x in self.nodes[0].getchaintips():
+            if x['hash'] == short_tip:
+                assert_equal(x['status'], "headers-only")
+                break
+        else:
+            raise AssertionError("short tip not synced")
+        assert_raises_rpc_error(-1, "Block not found on disk", self.nodes[0].getblock, short_tip)
+
+        self.log.info("Fetch block from node 1")
+        peers = self.nodes[0].getpeerinfo()
+        assert_equal(len(peers), 1)
+        peer_0_peer_1_id = peers[0]["id"]
+
+        self.log.info("Arguments must be sensible")
+        assert_raises_rpc_error(-8, "hash must be of length 64 (not 4, for '1234')", self.nodes[0].getblockfrompeer, "1234", 0)
+
+        self.log.info("We must already have the header")
+        assert_raises_rpc_error(-1, "Block header missing", self.nodes[0].getblockfrompeer, "00" * 32, 0)
+
+        self.log.info("Non-existent peer generates error")
+        assert_raises_rpc_error(-1, f"Peer nodeid {peer_0_peer_1_id + 1} does not exist", self.nodes[0].getblockfrompeer, short_tip, peer_0_peer_1_id + 1)
+
+        self.log.info("Successful fetch")
+        result = self.nodes[0].getblockfrompeer(short_tip, peer_0_peer_1_id)
+        self.wait_until(lambda: self.check_for_block(short_tip), timeout=1)
+        assert(not "warnings" in result)
+
+        self.log.info("Don't fetch blocks we already have")
+        result = self.nodes[0].getblockfrompeer(short_tip, peer_0_peer_1_id)
+        assert("warnings" in result)
+        assert_equal(result["warnings"], "Block already downloaded")
+
+if __name__ == '__main__':
+    GetBlockFromPeerTest().main()
diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
index 8e7e791538e..0a764a17556 100755
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -217,6 +217,7 @@ BASE_SCRIPTS = [
     'wallet_txn_clone.py --mineblock',
     'feature_notifications.py',
     'rpc_getblockfilter.py',
+    'rpc_getblockfrompeer.py',
     'rpc_invalidateblock.py',
     'feature_utxo_set_hash.py',
     'feature_rbf.py --legacy-wallet',