diff --git a/jenkins/comment.py b/jenkins/comment.py
new file mode 100755
index 0000000..edd1aeb
--- /dev/null
+++ b/jenkins/comment.py
@@ -0,0 +1,80 @@
+#!/usr/bin/env python3
+"""
+Posts a comment to Gerrit.
+"""
+
+__copyright__ = """
+/*
+ * Copyright (c) 2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+ """
+
+import argparse
+import json
+import os
+import sys
+import requests
+
+
+def submit_comment(base_url, auth, changeset, patchset_revision, comment):
+    post_data = {"message": comment}
+    comment_url = "{}/a/changes/{}/revisions/{}/review".format(
+        base_url, changeset, patchset_revision
+    )
+    headers = {"Content-Type": "application/json; charset=UTF-8"}
+    post = None
+    try:
+        post = requests.post(
+            comment_url, data=json.dumps(post_data), auth=auth, headers=headers,
+        )
+    except requests.exceptions.RequestException as exception:
+        print("Error posting comment to Gerrit.")
+        sys.exit(0)
+    if post.status_code == 200:
+        print("Posted comment to Gerrit successfully.")
+    else:
+        print(
+            "Could not post comment to Gerrit. Error: {} {}".format(
+                post.status_code, post.text
+            )
+        )
+
+
+if __name__ == "__main__":
+    PARSER = argparse.ArgumentParser(description="Submits a comment to a Gerrit change")
+    PARSER.add_argument("--host", help="Gerrit Host", default=os.getenv("GERRIT_HOST"))
+    PARSER.add_argument(
+        "--changeset",
+        help="Changeset in Gerrit to comment on.",
+        default=os.getenv("GERRIT_CHANGE_NUMBER"),
+    )
+    PARSER.add_argument(
+        "--patchset-revision",
+        help="Commit SHA of revision in Gerrit to comment on.",
+        default=os.getenv("GERRIT_PATCHSET_REVISION"),
+    )
+    PARSER.add_argument(
+        "--user", help="Username to authenticate as.", default=os.getenv("GERRIT_USER")
+    )
+    PARSER.add_argument(
+        "--password",
+        help="Password or token to authenticate as. "
+        "Defaults to GERRIT_PASSWORD environment variable.",
+        default=os.getenv("GERRIT_PASSWORD"),
+    )
+    PARSER.add_argument("--protocol", help="Protocol to use.", default="https")
+    PARSER.add_argument("--port", help="Port to use.", default=None)
+    PARSER.add_argument("--comment", help="Comment to send.")
+    ARGS = PARSER.parse_args()
+    submit_comment(
+        "{}://{}{}".format(
+            ARGS.protocol, ARGS.host, ":{}".format(ARGS.port) if ARGS.port else ""
+        ),
+        (ARGS.user, ARGS.password),
+        ARGS.changeset,
+        ARGS.patchset_revision,
+        ARGS.comment,
+    )