diff --git a/mlir/include/mlir/IR/OpBase.td b/mlir/include/mlir/IR/OpBase.td
--- a/mlir/include/mlir/IR/OpBase.td
+++ b/mlir/include/mlir/IR/OpBase.td
@@ -1686,6 +1686,9 @@
 class HasParent<string op>
     : ParamNativeOpTrait<"HasParent", op>;
 
+class ParentOneOf<list<string> ops>
+    : ParamNativeOpTrait<"HasParent", StrJoin<ops>.result>;
+
 // Op result type is derived from the first attribute. If the attribute is an
 // subclass of `TypeAttrBase`, its value is used, otherwise, the type of the
 // attribute content is used.
diff --git a/mlir/include/mlir/IR/OpDefinition.h b/mlir/include/mlir/IR/OpDefinition.h
--- a/mlir/include/mlir/IR/OpDefinition.h
+++ b/mlir/include/mlir/IR/OpDefinition.h
@@ -1139,16 +1139,50 @@
   };
 };
 
-/// This class provides a verifier for ops that are expecting a specific parent.
-template <typename ParentOpType> struct HasParent {
+/// Helper functions for HasParent
+namespace detail {
+template <typename ParentOpType>
+bool is_one_of(Operation *op) {
+  return isa<ParentOpType>(op);
+}
+
+template <typename First, typename... Rest>
+typename std::enable_if<sizeof...(Rest) != 0, bool>::type
+is_one_of(Operation *op) {
+  return isa<First>(op) || is_one_of<Rest...>(op);
+}
+
+template <typename ParentOpType>
+void enumerate(InFlightDiagnostic &d) {
+  d << ParentOpType::getOperationName();
+}
+
+template <typename First, typename... Rest>
+typename std::enable_if<sizeof...(Rest) != 0, void>::type
+enumerate(InFlightDiagnostic &d) {
+  enumerate<First>(d);
+  d << ", ";
+  enumerate<Rest...>(d);
+}
+} // end namespace detail
+
+/// This class provides a verifier for ops that are expecting their parent
+/// to be one of the given parent ops
+template <typename... ParentOpTypes>
+struct HasParent {
   template <typename ConcreteType>
   class Impl : public TraitBase<ConcreteType, Impl> {
   public:
     static LogicalResult verifyTrait(Operation *op) {
-      if (isa<ParentOpType>(op->getParentOp()))
+      if (detail::is_one_of<ParentOpTypes...>(op->getParentOp()))
         return success();
-      return op->emitOpError() << "expects parent op '"
-                               << ParentOpType::getOperationName() << "'";
+
+      InFlightDiagnostic diag = op->emitOpError();
+      diag << "expects parent op "
+           << (sizeof...(ParentOpTypes) != 1 ? "one of '" : "'");
+      detail::enumerate<ParentOpTypes...>(diag);
+      diag << "'";
+      return diag;
     }
   };
 };
diff --git a/mlir/test/IR/traits.mlir b/mlir/test/IR/traits.mlir
--- a/mlir/test/IR/traits.mlir
+++ b/mlir/test/IR/traits.mlir
@@ -173,6 +173,39 @@
   }) : () -> ()
 }
 
+// -----
+
+// CHECK: succeededParentOneOf
+func @succeededParentOneOf() {
+  "test.parent"() ({
+    "test.child_with_parent_one_of"() : () -> ()
+    "test.finish"() : () -> ()
+   }) : () -> ()
+  return
+}
+
+// -----
+
+// CHECK: succeededParent1OneOf
+func @succeededParent1OneOf() {
+  "test.parent1"() ({
+    "test.child_with_parent_one_of"() : () -> ()
+    "test.finish"() : () -> ()
+   }) : () -> ()
+  return
+}
+
+// -----
+
+func @failedParentOneOf_wrong_parent1() {
+  "some.otherop"() ({
+    // expected-error@+1 {{'test.child_with_parent_one_of' op expects parent op one of 'test.parent, test.parent1'}}
+    "test.child_with_parent_one_of"() : () -> ()
+    "test.finish"() : () -> ()
+   }) : () -> ()
+}
+
+
 // -----
 
 func @failedSingleBlockImplicitTerminator_empty_block() {
diff --git a/mlir/test/lib/Dialect/Test/TestOps.td b/mlir/test/lib/Dialect/Test/TestOps.td
--- a/mlir/test/lib/Dialect/Test/TestOps.td
+++ b/mlir/test/lib/Dialect/Test/TestOps.td
@@ -439,10 +439,18 @@
   let results = (outs AnyTensor);
 }
 
-// There the "HasParent" trait.
-def ParentOp : TEST_Op<"parent">;
+// HasParent trait
+def ParentOp : TEST_Op<"parent"> {
+    let regions = (region AnyRegion);
+}
 def ChildOp : TEST_Op<"child", [HasParent<"ParentOp">]>;
 
+// ParentOneOf trait
+def ParentOp1 : TEST_Op<"parent1"> {
+  let regions = (region AnyRegion);
+}
+def ChildWithParentOneOf : TEST_Op<"child_with_parent_one_of",
+                                [ParentOneOf<["ParentOp", "ParentOp1"]>]>;
 
 def TerminatorOp : TEST_Op<"finish", [Terminator]>;
 def SingleBlockImplicitTerminatorOp : TEST_Op<"SingleBlockImplicitTerminator",