diff --git a/masque/library.py b/masque/library.py
index 1240b48..b730fba 100644
--- a/masque/library.py
+++ b/masque/library.py
@@ -1063,6 +1063,25 @@ class ILibrary(ILibraryView, MutableMapping[str, 'Pattern'], metaclass=ABCMeta):
 
         return self
 
+    def resolve_repeated_refs(self, name: str | None = None) -> Self:
+        """
+        Expand all repeated references into multiple individual references.
+        Alters the library in-place.
+
+        Args:
+            name: If specified, only resolve repeated refs in this pattern.
+                Otherwise, resolve in all patterns.
+
+        Returns:
+            self
+        """
+        if name is not None:
+            self[name].resolve_repeated_refs()
+        else:
+            for pat in self.values():
+                pat.resolve_repeated_refs()
+        return self
+
     def subtree(
             self,
             tops: str | Sequence[str],
diff --git a/masque/pattern.py b/masque/pattern.py
index 9e15910..ea8fdd5 100644
--- a/masque/pattern.py
+++ b/masque/pattern.py
@@ -976,6 +976,28 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
                 del self.labels[layer]
         return self
 
+    def resolve_repeated_refs(self) -> Self:
+        """
+        Expand all repeated references into multiple individual references.
+        Alters the current pattern in-place.
+
+        Returns:
+            self
+        """
+        new_refs: defaultdict[str | None, list[Ref]] = defaultdict(list)
+        for target, rseq in self.refs.items():
+            for ref in rseq:
+                if ref.repetition is None:
+                    new_refs[target].append(ref)
+                else:
+                    for dd in ref.repetition.displacements:
+                        new_ref = ref.deepcopy()
+                        new_ref.offset = ref.offset + dd
+                        new_ref.repetition = None
+                        new_refs[target].append(new_ref)
+        self.refs = new_refs
+        return self
+
     def prune_refs(self) -> Self:
         """
         Remove empty ref lists in `self.refs`.