diff --git a/src/key.cpp b/src/key.cpp
index e8458f2e3b2..97d7821e740 100644
--- a/src/key.cpp
+++ b/src/key.cpp
@@ -166,12 +166,6 @@ void CKey::MakeNewKey(bool fCompressedIn) {
     fCompressed = fCompressedIn;
 }
 
-bool CKey::Negate()
-{
-    assert(keydata);
-    return secp256k1_ec_seckey_negate(secp256k1_context_sign, keydata->data());
-}
-
 CPrivKey CKey::GetPrivKey() const {
     assert(keydata);
     CPrivKey seckey;
diff --git a/src/key.h b/src/key.h
index 36d093b7dc9..c802e1ebb8c 100644
--- a/src/key.h
+++ b/src/key.h
@@ -124,9 +124,6 @@ public:
     //! Generate a new private key using a cryptographic PRNG.
     void MakeNewKey(bool fCompressed);
 
-    //! Negate private key
-    bool Negate();
-
     /**
      * Convert the private key to a CPrivKey (serialized OpenSSL private key data).
      * This is expensive.
diff --git a/src/test/fuzz/key.cpp b/src/test/fuzz/key.cpp
index d389a29575f..82973803f84 100644
--- a/src/test/fuzz/key.cpp
+++ b/src/test/fuzz/key.cpp
@@ -78,16 +78,6 @@ FUZZ_TARGET(key, .init = initialize_key)
         assert(copied_key == key);
     }
 
-    {
-        CKey negated_key = key;
-        negated_key.Negate();
-        assert(negated_key.IsValid());
-        assert(!(negated_key == key));
-
-        negated_key.Negate();
-        assert(negated_key == key);
-    }
-
     const uint256 random_uint256 = Hash(buffer);
 
     {
diff --git a/src/test/key_tests.cpp b/src/test/key_tests.cpp
index aaf4ca49778..1ec6de78cba 100644
--- a/src/test/key_tests.cpp
+++ b/src/test/key_tests.cpp
@@ -201,37 +201,6 @@ BOOST_AUTO_TEST_CASE(key_signature_tests)
     BOOST_CHECK(found_small);
 }
 
-BOOST_AUTO_TEST_CASE(key_key_negation)
-{
-    // create a dummy hash for signature comparison
-    unsigned char rnd[8];
-    std::string str = "Bitcoin key verification\n";
-    GetRandBytes(rnd);
-    uint256 hash{Hash(str, rnd)};
-
-    // import the static test key
-    CKey key = DecodeSecret(strSecret1C);
-
-    // create a signature
-    std::vector<unsigned char> vch_sig;
-    std::vector<unsigned char> vch_sig_cmp;
-    key.Sign(hash, vch_sig);
-
-    // negate the key twice
-    BOOST_CHECK(key.GetPubKey().data()[0] == 0x03);
-    key.Negate();
-    // after the first negation, the signature must be different
-    key.Sign(hash, vch_sig_cmp);
-    BOOST_CHECK(vch_sig_cmp != vch_sig);
-    BOOST_CHECK(key.GetPubKey().data()[0] == 0x02);
-    key.Negate();
-    // after the second negation, we should have the original key and thus the
-    // same signature
-    key.Sign(hash, vch_sig_cmp);
-    BOOST_CHECK(vch_sig_cmp == vch_sig);
-    BOOST_CHECK(key.GetPubKey().data()[0] == 0x03);
-}
-
 static CPubKey UnserializePubkey(const std::vector<uint8_t>& data)
 {
     DataStream stream{};