| Acronym | Definition |
|---|
| RCK➣Rockford (Amtrak station code; Rockford, IL) |
| RCK➣Radio Check |
| RCK➣Returned Check |
| RCK➣Regulator of Conductance of K+ (also seen as RCK1) |
| RCK➣Roazhon Celtic Kop (French soccer club) |
| RCK➣Remote Control Kit |
| RCK➣Ramsey-Cass-Koopmans (economic model) |
| RCK➣Royal Charoen Krung Tower (now State Tower; skyscraper; Bangkok, Thailand) |
| RCK➣Rifle Cleaning Kit |
| RCK➣Radio Club Kennemerland (Dutch radio club) |
| RCK➣Rugby Club de Kourou (French rugby club) |
| RCK➣Roller City Knights (French roller skating club) |
| RCK➣Reverse Crescent Kick (karate) |