diff --git a/cmd/protoc-gen-go/internal_gengo/well_known_types.go b/cmd/protoc-gen-go/internal_gengo/well_known_types.go
index 4fc1cd7..7365075 100644
--- a/cmd/protoc-gen-go/internal_gengo/well_known_types.go
+++ b/cmd/protoc-gen-go/internal_gengo/well_known_types.go
@@ -19,6 +19,16 @@
 func genMessageKnownFunctions(g *protogen.GeneratedFile, f *fileInfo, m *messageInfo) {
 	switch m.Desc.FullName() {
 	case genid.Any_message_fullname:
+		g.P("// New marshals src into a new Any instance.")
+		g.P("func New(src ", protoPackage.Ident("Message"), ") (*Any, error) {")
+		g.P("	dst := new(Any)")
+		g.P("	if err := dst.MarshalFrom(src); err != nil {")
+		g.P("		return nil, err")
+		g.P("	}")
+		g.P("	return dst, nil")
+		g.P("}")
+		g.P()
+
 		g.P("// MarshalFrom marshals src into dst as the underlying message")
 		g.P("// using the provided marshal options.")
 		g.P("//")
diff --git a/types/known/anypb/any.pb.go b/types/known/anypb/any.pb.go
index 4a7f5bb..061a9ee 100644
--- a/types/known/anypb/any.pb.go
+++ b/types/known/anypb/any.pb.go
@@ -161,6 +161,15 @@
 	Value []byte `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
 }
 
+// New marshals src into a new Any instance.
+func New(src proto.Message) (*Any, error) {
+	dst := new(Any)
+	if err := dst.MarshalFrom(src); err != nil {
+		return nil, err
+	}
+	return dst, nil
+}
+
 // MarshalFrom marshals src into dst as the underlying message
 // using the provided marshal options.
 //