The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Orbits Kellog (1 member)
- Orbits Kyuky'a IA (1 member)
- Orbits Lyria (1 member)
- Orbits Magda (1 member)
- Orbits Nexus (1 member)
- Orbits Nexus II (1 member)
- Orbits Nogo (1 member)
- Orbits Odin (star) (1 member)
- Orbits Oso (1 member)
- Orbits Pyro VI (1 member)
- Orbits Sol (2 members)
- Orbits Synthworld (2 members)
- Orbits Tangaroa (1 member)
- Orbits Tayac I (1 member)
- Orbits Terra III (2 members)
- Orbits Trise I (1 member)
- Orbits Wala (1 member)
- Orbits Xis (1 member)
- Orbits Yela (2 members)
- Orbits Yulin (1 member)
- Orbits Yulin II (1 member)
- Orbits microTech (8 members)
- Oretani System (8 members)
- Organization Images (2 members)
- Organizations (78 members)
- Origin Jumpworks (23 members)
- Origin Jumpworks GmbH (1 member)
- Origin Racing Suit images (2 members)
- Orilis images (1 member)
- Orion System (7 members)
- Orion images (24 members)
- Orison (12 members)
- Orison General images (1 member)
- Orison images (178 members)
- Ortwin Freyermuth images (1 member)
- Osiris System (5 members)
- Oso System (8 members)
- Other Named Ships (1 member)
- Otoni Syndicate Faction Characters (4 members)
- Outdated Guides (0 members)
- Outlaw (8 members)
- Outlaw (former) Faction Characters (1 member)
- Outlaw Faction Characters (4 members)
- Outlaw organizations (14 members)
- Outlaws (8 members)
- Outpost images (11 members)
- Outposts (97 members)
- Overlord Helmet images (1 member)
- Overlord armor images (14 members)
- Overlord set (4 members)