Gnomeregan Commendation Officer is a level 55 quest giver located in the Military Ward in the dwarf city of Ironforge.
She starts the following quests:
[60] One Commendation Signet (Repeatable)- [60] Ten Commendation Signets (Repeatable)
NOTE: She is only available during the Ahn'Qiraj War Effort world event.
See List of Ironforge NPCs.