diff --git a/flang/include/flang/Optimizer/Dialect/FIROps.td b/flang/include/flang/Optimizer/Dialect/FIROps.td
--- a/flang/include/flang/Optimizer/Dialect/FIROps.td
+++ b/flang/include/flang/Optimizer/Dialect/FIROps.td
@@ -2868,7 +2868,7 @@
   }];
 }
 
-def fir_DTEntryOp : fir_Op<"dt_entry", []> {
+def fir_DTEntryOp : fir_Op<"dt_entry", [HasParent<"DispatchTableOp">]> {
   let summary = "map entry in a dispatch table";
 
   let description = [{
diff --git a/flang/test/Fir/convert-to-llvm-invalid.fir b/flang/test/Fir/convert-to-llvm-invalid.fir
--- a/flang/test/Fir/convert-to-llvm-invalid.fir
+++ b/flang/test/Fir/convert-to-llvm-invalid.fir
@@ -27,3 +27,10 @@
 fir.dispatch_table @dispatch_tbl {
   fir.dt_entry "method", @method_impl
 }
+
+// -----
+
+// Verify that `fir.dt_entry` requires a parent op
+
+// expected-error@+1{{'fir.dt_entry' op expects parent op 'fir.dispatch_table'}}
+fir.dt_entry "method", @method_impl