diff --git a/.changeset/go-sdk-streams.md b/.changeset/go-sdk-streams.md
new file mode 100644
index 000000000..4f9f21b43
--- /dev/null
+++ b/.changeset/go-sdk-streams.md
@@ -0,0 +1,5 @@
+---
+"github.com/livekit/protocol": patch
+---
+
+Go SDK support for stream data messages.
\ No newline at end of file
diff --git a/livekit/types.go b/livekit/types.go
index 4666d67bf..644b1393b 100644
--- a/livekit/types.go
+++ b/livekit/types.go
@@ -328,3 +328,30 @@ func (p *ChatMessage) ToProto() *DataPacket {
 		},
 	}
 }
+
+// ToProto implements DataPacket in Go SDK.
+func (p *DataStream_Header) ToProto() *DataPacket {
+	return &DataPacket{
+		Value: &DataPacket_StreamHeader{
+			StreamHeader: p,
+		},
+	}
+}
+
+// ToProto implements DataPacket in Go SDK.
+func (p *DataStream_Chunk) ToProto() *DataPacket {
+	return &DataPacket{
+		Value: &DataPacket_StreamChunk{
+			StreamChunk: p,
+		},
+	}
+}
+
+// ToProto implements DataPacket in Go SDK.
+func (p *DataStream_Trailer) ToProto() *DataPacket {
+	return &DataPacket{
+		Value: &DataPacket_StreamTrailer{
+			StreamTrailer: p,
+		},
+	}
+}