diff --git a/src/serialize.h b/src/serialize.h
index 96c1e6355f3..e88a25fa114 100644
--- a/src/serialize.h
+++ b/src/serialize.h
@@ -60,11 +60,6 @@ template<typename Stream> inline void ser_writedata16(Stream &s, uint16_t obj)
     obj = htole16_internal(obj);
     s.write(std::as_bytes(std::span{&obj, 1}));
 }
-template<typename Stream> inline void ser_writedata16be(Stream &s, uint16_t obj)
-{
-    obj = htobe16_internal(obj);
-    s.write(std::as_bytes(std::span{&obj, 1}));
-}
 template<typename Stream> inline void ser_writedata32(Stream &s, uint32_t obj)
 {
     obj = htole32_internal(obj);
@@ -92,12 +87,6 @@ template<typename Stream> inline uint16_t ser_readdata16(Stream &s)
     s.read(std::as_writable_bytes(std::span{&obj, 1}));
     return le16toh_internal(obj);
 }
-template<typename Stream> inline uint16_t ser_readdata16be(Stream &s)
-{
-    uint16_t obj;
-    s.read(std::as_writable_bytes(std::span{&obj, 1}));
-    return be16toh_internal(obj);
-}
 template<typename Stream> inline uint32_t ser_readdata32(Stream &s)
 {
     uint32_t obj;
diff --git a/src/test/fuzz/integer.cpp b/src/test/fuzz/integer.cpp
index a6729155d1f..1215f532b74 100644
--- a/src/test/fuzz/integer.cpp
+++ b/src/test/fuzz/integer.cpp
@@ -236,10 +236,6 @@ FUZZ_TARGET(integer, .init = initialize_integer)
         const uint16_t deserialized_u16 = ser_readdata16(stream);
         assert(u16 == deserialized_u16 && stream.empty());
 
-        ser_writedata16be(stream, u16);
-        const uint16_t deserialized_u16be = ser_readdata16be(stream);
-        assert(u16 == deserialized_u16be && stream.empty());
-
         ser_writedata8(stream, u8);
         const uint8_t deserialized_u8 = ser_readdata8(stream);
         assert(u8 == deserialized_u8 && stream.empty());