diff --git a/static/js/index.js b/static/js/index.js
index 746faf6..2517657 100644
--- a/static/js/index.js
+++ b/static/js/index.js
@@ -857,6 +857,10 @@ window.app = Vue.createApp({
       const account = this.accounts.find(a => a.id === accountId)
       return account ? account.name : accountId
     },
+    getUserName(userId) {
+      const user = this.users.find(u => u.user_id === userId)
+      return user ? user.username : userId.substring(0, 16) + '...'
+    },
     async loadReconciliationSummary() {
       if (!this.isSuperUser) return
 
diff --git a/templates/castle/index.html b/templates/castle/index.html
index 5462904..b5d6a01 100644
--- a/templates/castle/index.html
+++ b/templates/castle/index.html
@@ -79,7 +79,7 @@
                 {% raw %}{{ formatDate(entry.entry_date) }}{% endraw %}
               </q-item-label>
               <q-item-label caption v-if="entry.meta && entry.meta.user_id">
-                User: {% raw %}{{ entry.meta.user_id.substring(0, 16) }}...{% endraw %}
+                User: {% raw %}{{ getUserName(entry.meta.user_id) }}{% endraw %}
               </q-item-label>
               <q-item-label caption v-if="entry.reference" class="text-grey">
                 Ref: {% raw %}{{ entry.reference }}{% endraw %}
@@ -285,7 +285,7 @@
             <q-item-section>
               <q-item-label>{% raw %}{{ request.description }}{% endraw %}</q-item-label>
               <q-item-label caption>
-                User: {% raw %}{{ request.user_id.substring(0, 16) }}...{% endraw %}
+                User: {% raw %}{{ getUserName(request.user_id) }}{% endraw %}
               </q-item-label>
               <q-item-label caption>
                 Requested: {% raw %}{{ formatDate(request.created_at) }}{% endraw %}