| olurogullariburak | 76561198193307797 | 1 | 0 |
| ołwerlin | 76561198074745885 | 1 | 0 |
| OLYALYA | 76561198562331659 | 1 | 0 |
| olyalyabl9I | 76561198197305935 | 2 | 0 |
| Om3gaX | 76561198016165910 | 1 | 0 |
| om3n | 76561198256352933 | 38 | 0 |
| Om4rSherifff | 76561198117886102 | 1 | 0 |
| Omae wa mou shindeiru | 76561198018071840 | 4 | 0 |
| OMAE WA MOU SHINDEIRU | 76561198045251009 | 1 | 0 |
| ömÅn | 76561198069153954 | 11 | 0 |
| ombra | 76561198054859155 | 1 | 0 |
| Omc44 | 76561198122396094 | 40 | 0 |
| OMD | 76561198043668222 | 6 | 0 |
| omega | 76561198155087849 | 29 | 0 |
| omega | 76561199061373121 | 3 | 0 |
| Omega | 76561197974832533 | 1 | 0 |
| Omega Weapon | 76561198017273955 | 11 | 0 |
| Omek | 76561197970116678 | 1 | 0 |
| Omg22333 | 76561199275563792 | 1 | 0 |
| omg a furry | 76561198029987049 | 1 | 0 |
| OMGD | 76561198258486793 | 1 | 0 |
| OmgImSoBoredImGonnaExplode | 76561198146831863 | 1 | 0 |
| OmgRocket^ | 76561198040381150 | 6 | 0 |
| [OMG]shantiShanti | 76561198121816700 | 1 | 0 |
| oMgSnarf | 76561198025683987 | 1 | 0 |
| oMgWtf | 76561198257504216 | 1 | 0 |
| Ominous Trickster | 76561198108724183 | 2 | 0 |
| omnamashivaya | 76561198277622238 | 1 | 0 |
| OmniLlama | 76561197992771487 | 5 | 0 |
| omni_warrior | 76561198051293747 | 2 | 0 |
| omnuzz | 76561198169402216 | 1 | 0 |
| Omolet Du Fromage | 76561198026406210 | 1 | 0 |
| omεη | 76561197981407212 | 3 | 0 |
| on1ko | 76561197960306832 | 5 | 0 |
| ON71N3 G4M3R | 76561198252111528 | 1 | 0 |
| Óňa | 76561198265670732 | 96 | 0 |
| onastyinc | 76561198003506159 | 1 | 0 |
| onda andar | 76561198871669089 | 1 | 0 |
| ondatra | 76561198033309693 | 6 | 0 |
| ondegrise | 76561197970950559 | 1 | 0 |
| ondrasna | 76561199010508505 | 1 | 0 |
| one7five | 76561197981432816 | 1 | 0 |
| oneAshot | 76561198096680765 | 1 | 0 |
| onebigsucc | 76561198821675307 | 2 | 0 |
| onebro | 76561197991228169 | 1 | 0 |
| OneCloud | 76561198040486351 | 48 | 0 |
| OneHappyTeddyBear | 76561198152555968 | 1 | 0 |
| one-hit kill ten million times | 76561198065600921 | 4 | 0 |
| OneManArmy | 76561198257650978 | 4 | 0 |
| oneofthems | 76561198043124028 | 1 | 0 |