diff --git a/zerver/webhooks/harbor/view.py b/zerver/webhooks/harbor/view.py
index 3dd7a35c05..39cdd5bf1e 100644
--- a/zerver/webhooks/harbor/view.py
+++ b/zerver/webhooks/harbor/view.py
@@ -27,7 +27,6 @@ def guess_zulip_user_from_harbor(harbor_username: str, realm: Realm) -> Optional
         # and beginning of email address
         user = UserProfile.objects.filter(
             Q(full_name__iexact=harbor_username) |
-            Q(short_name__iexact=harbor_username) |
             Q(email__istartswith=harbor_username),
             is_active=True,
             realm=realm).order_by("id")[0]
diff --git a/zerver/webhooks/jira/view.py b/zerver/webhooks/jira/view.py
index ab095687df..d9d8ad5f24 100644
--- a/zerver/webhooks/jira/view.py
+++ b/zerver/webhooks/jira/view.py
@@ -29,7 +29,6 @@ def guess_zulip_user_from_jira(jira_username: str, realm: Realm) -> Optional[Use
         # and beginning of email address
         user = UserProfile.objects.filter(
             Q(full_name__iexact=jira_username) |
-            Q(short_name__iexact=jira_username) |
             Q(email__istartswith=jira_username),
             is_active=True,
             realm=realm).order_by("id")[0]
diff --git a/zerver/webhooks/teamcity/view.py b/zerver/webhooks/teamcity/view.py
index b83cfb0c82..3b926043a6 100644
--- a/zerver/webhooks/teamcity/view.py
+++ b/zerver/webhooks/teamcity/view.py
@@ -32,7 +32,6 @@ def guess_zulip_user_from_teamcity(teamcity_username: str, realm: Realm) -> Opti
         # and beginning of email address
         user = UserProfile.objects.filter(
             Q(full_name__iexact=teamcity_username) |
-            Q(short_name__iexact=teamcity_username) |
             Q(email__istartswith=teamcity_username),
             is_active=True,
             realm=realm).order_by("id")[0]