The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Weapon mounts (4 members)
- Wearable images (1 member)
- Website Images (6 members)
- Wee (1 member)
- Weehamster images (2,924 members)
- Wei-Tek (13 members)
- Wen-Cassel Propulsion (15 members)
- Whammers images (3 members)
- Whisperer in the Dark (0 members)
- White Dwarf-Degenerate-A (1 member)
- White Dwarf A-type (2 members)
- Wiki (13 members)
- Wikimedia UI icons (15 members)
- Wildstar Racing Amateur League (2 members)
- WillsOp (14 members)
- Work In Progress (0 members)
- WowBlast Desperado Toy Pistol images (8 members)
- Writer's Guide (0 members)
- X1 Force images (2 members)
- X1 Velocity images (2 members)
- X1 images (19 members)
- X1 series (4 members)
- Xanthule Helmet images (8 members)
- Xanthule Suit images (8 members)
- XenoThreat images (1 member)
- Xenosystems (1 member)
- Xi (1 member)
- Xi'An Characters (1 member)
- Xi'An Faction Characters (0 members)
- Xi'An Systems (0 members)
- Xi'an Characters (6 members)
- Xi'an Empire (3 members)
- Xi'an Faction Characters (5 members)
- Xi'an Systems (17 members)
- Xi'an companies (5 members)
- Xi'an images (15 members)
- Xi’an (1 member)
- Xi’an Faction Characters (0 members)
- Yar (1 member)
- Yar images (1 member)
- Years (29 members)
- Yela (14 members)
- Yela images (41 members)
- YellowJacket GT-210 Gatling images (1 member)
- Yorm (7 members)
- Yubarev (1 member)
- Yubarev Electron Pistol images (1 member)
- Yubarev Pistol images (11 members)
- Yue (0 members)
- Yue-N (0 members)