The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Abaddon's Gate (mission) (3 members)
- Abaddon's Gate (outpost) (5 members)
- Abaddon's Mouth (mission) (31 members)
- Abaddon's Mouth (outpost) (2 members)
- Abbreviations (401 members)
- Abomination Bosses (6 members)
- Abominations (7 members)
- Accepted RfAs (27 members)
- Account-based titles (12 members)
- Actions (3 members)
- Activities (5 members)
- Adept (6 members)
- Afflicted (21 members)
- Afflicted Bosses (32 members)
- Air Magic skills (33 members)
- Alcazia Tangle (25 members)
- Alcohol (0 members)
- All weapon upgrades (33 members)
- Allegiance (2 members)
- Allegiance Title skills (10 members)
- Alliance Battle maps (6 members)
- Alliance Battle outposts (10 members)
- Altrumm Ruins (8 members)
- Altrumm Ruins (outpost) (6 members)
- Am Fah (13 members)
- Am Fah Bosses (20 members)
- Am Fah NPCs (5 members)
- Amatz Basin (outpost) (6 members)
- Amber weapons (4 members)
- Ambient Animals (17 members)
- Ancient armor (10 members)
- Ancient weapons (9 members)
- Angchu (13 members)
- Anguish Gemstones (5 members)
- Animal companions (39 members)
- Animals (12 members)
- Animated (47 members)
- Anomalies (219 members)
- Answered questions (0 members)
- Anvil Rock (13 members)
- Arachni's Haunt (4 members)
- Arbor Bay (18 members)
- Arborstone (explorable) (39 members)
- Arborstone (mission) (23 members)
- Arborstone (outpost) (3 members)
- Arcane weapons (2 members)
- Archaic weapons (3 members)
- Archipelagos (38 members)
- Archived Policies (29 members)
- ArenaNet (13 members)