OS, OS, Os, O's, ko os na iya nufin to: Binciken Ordnance, hukumar taswirar ƙasa ta Burtaniya Jirgin saman Austrian (lambar IATA OS dangane da asalin sunan sa: Österreichische Luftverkehrs AG ) OS Engines, wani kamfanin Japan na kera injunan jirgin sama samfurin Tsarin aiki, software na tsarin kwamfuta wanda ke sarrafa kayan masarufi da software na kwamfuta Buɗe tushen (disambiguation) OpenStack, dandamali na software don sarrafa girgije "Os" ( <i id="mwIg">Fringe</i> ), wani ɓangaren wasan kwaikwayon talabijin Fringe Outlaw Star, jerin manga da jerin anime Oculus sinister, ma'ana "idon hagu" a gabaɗaya ophthalmologic ko optometric amfani, musamman a cikin takardar gilashin ido.