diff --git a/gql/cli.py b/gql/cli.py
index 27a562b2..2a6ff3f5 100644
--- a/gql/cli.py
+++ b/gql/cli.py
@@ -46,6 +46,25 @@
 """
 
 
+def positive_int_or_none(value_str: str) -> Optional[int]:
+    """Convert a string argument value into either an int or None.
+
+    Raise a ValueError if the argument is negative or a string which is not "none"
+    """
+    try:
+        value_int = int(value_str)
+    except ValueError:
+        if value_str.lower() == "none":
+            return None
+        else:
+            raise
+
+    if value_int < 0:
+        raise ValueError
+
+    return value_int
+
+
 def get_parser(with_examples: bool = False) -> ArgumentParser:
     """Provides an ArgumentParser for the gql-cli script.
 
@@ -103,6 +122,13 @@ def get_parser(with_examples: bool = False) -> ArgumentParser:
         action="store_true",
         dest="print_schema",
     )
+    parser.add_argument(
+        "--execute-timeout",
+        help="set the execute_timeout argument of the Client (default: 10)",
+        type=positive_int_or_none,
+        default=10,
+        dest="execute_timeout",
+    )
     parser.add_argument(
         "--transport",
         default="auto",
@@ -367,7 +393,9 @@ async def main(args: Namespace) -> int:
 
     # Connect to the backend and provide a session
     async with Client(
-        transport=transport, fetch_schema_from_transport=args.print_schema
+        transport=transport,
+        fetch_schema_from_transport=args.print_schema,
+        execute_timeout=args.execute_timeout,
     ) as session:
 
         if args.print_schema:
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 9066544b..359e94fb 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -73,6 +73,25 @@ def test_cli_parser(parser):
     )
     assert args.operation_name == "my_operation"
 
+    # Check execute_timeout
+    # gql-cli https://your_server.com --execute-timeout 1
+    args = parser.parse_args(["https://your_server.com", "--execute-timeout", "1"])
+    assert args.execute_timeout == 1
+
+    # gql-cli https://your_server.com --execute-timeout=none
+    args = parser.parse_args(["https://your_server.com", "--execute-timeout", "none"])
+    assert args.execute_timeout is None
+
+    # gql-cli https://your_server.com --execute-timeout=-1
+    with pytest.raises(SystemExit):
+        args = parser.parse_args(["https://your_server.com", "--execute-timeout", "-1"])
+
+    # gql-cli https://your_server.com --execute-timeout=invalid
+    with pytest.raises(SystemExit):
+        args = parser.parse_args(
+            ["https://your_server.com", "--execute-timeout", "invalid"]
+        )
+
 
 def test_cli_parse_headers(parser):