diff --git a/src/w_wad.cpp b/src/w_wad.cpp
index 773cd6673..495a98db3 100644
--- a/src/w_wad.cpp
+++ b/src/w_wad.cpp
@@ -1086,6 +1086,16 @@ int FWadCollection::FindLump (const char *name, int *lastlump, bool anyns)
 	return -1;
 }
 
+DEFINE_ACTION_FUNCTION(_Wads, FindLump)
+{
+	PARAM_PROLOGUE;
+	PARAM_STRING(name);
+	PARAM_INT_DEF(startlump);
+	PARAM_INT_DEF(ns);
+	const bool isLumpValid = startlump >= 0 && startlump < Wads.GetNumLumps();
+	ACTION_RETURN_INT(isLumpValid ? Wads.FindLump(name, &startlump, 0 != ns) : -1);
+}
+
 //==========================================================================
 //
 // W_FindLumpMulti
diff --git a/wadsrc/static/zscript/base.txt b/wadsrc/static/zscript/base.txt
index 877c42b2b..97a4d65a2 100644
--- a/wadsrc/static/zscript/base.txt
+++ b/wadsrc/static/zscript/base.txt
@@ -631,7 +631,14 @@ struct Wads
 		ns_firstskin,
 	}
 
+	enum FindLumpNamespace
+	{
+		GlobalNamespace = 0,
+		AnyNamespace = 1,
+	}
+
 	native static int CheckNumForName(string name, int ns, int wadnum = -1, bool exact = false);
+	native static int FindLump(string name, int startlump = 0, FindLumpNamespace ns = GlobalNamespace);
 }
 
 struct TerrainDef native