| Acronym | Definition |
|---|
| OKB➣Ogaki Kyoritsu Bank (Japan) |
| OKB➣Operator Keyboard |
| OKB➣Obsesif Kompulsif Bozukluk (Turkish: Obsessive-Compulsive Disorder) |
| OKB➣OKbridge (online bridge club) |
| OKB➣OK Bye |
| OKB➣Osaka Kintetsu Buffaloes (Japanese baseball team) |
| OKB➣Old Kent Bank (Grand Rapids, Michigan) |
| OKB➣Online Knowledge Base |
| OKB➣Opytnoye Konstruktorskoye Byuro (Russian: Experimental Design Bureau) |