diff --git a/tools/python/util/convert_onnx_models_to_ort.py b/tools/python/util/convert_onnx_models_to_ort.py
index 8b515b95b7..5fdc522b18 100644
--- a/tools/python/util/convert_onnx_models_to_ort.py
+++ b/tools/python/util/convert_onnx_models_to_ort.py
@@ -54,7 +54,7 @@ def _create_session_options(optimization_level: ort.GraphOptimizationLevel,
 
 
 def _convert(model_path_or_dir: pathlib.Path, optimization_level_str: str, use_nnapi: bool, use_coreml: bool,
-             custom_op_library: pathlib.Path, create_optimized_onnx_model: bool):
+             custom_op_library: pathlib.Path, create_optimized_onnx_model: bool, allow_conversion_failures: bool):
 
     optimization_level = _get_optimization_level(optimization_level_str)
 
@@ -124,6 +124,8 @@ def _convert(model_path_or_dir: pathlib.Path, optimization_level_str: str, use_n
             #     onnx_target_path, ort_target_path, orig_size, new_size, new_size - orig_size, new_size / orig_size))
         except Exception as e:
             print("Error converting {}: {}".format(model, e))
+            if not allow_conversion_failures:
+                raise
             num_failures += 1
 
     print("Converted {} models. {} failures.".format(len(models), num_failures))
@@ -192,6 +194,9 @@ def parse_args():
                         help='Save the optimized version of each ONNX model. '
                              'This will have the same optimizations applied as the ORT format model.')
 
+    parser.add_argument('--allow_conversion_failures', action='store_true',
+                        help='Whether to proceed after encountering model conversion failures.')
+
     parser.add_argument('model_path_or_dir', type=pathlib.Path,
                         help='Provide path to ONNX model or directory containing ONNX model/s to convert. '
                              'All files with a .onnx extension, including in subdirectories, will be processed.')
@@ -222,7 +227,7 @@ def convert_onnx_models_to_ort():
             raise ValueError('The CoreML Execution Provider was not included in this build of ONNX Runtime.')
 
     _convert(model_path_or_dir, args.optimization_level, args.use_nnapi, args.use_coreml, custom_op_library,
-             args.save_optimized_onnx_model)
+             args.save_optimized_onnx_model, args.allow_conversion_failures)
 
     _create_config_file_from_ort_models(model_path_or_dir, args.optimization_level, args.enable_type_reduction)