Circle K International
| Founded | 1936 | 
|---|---|
| Founder | Jay N. Emerson | 
| Type | Service | 
| Focus | To promote service, leadership, and fellowship | 
| Location | 
 | 
| Origins | Washington State College, Pullman, Washington | 
| Area served  | Worldwide | 
| Method | Community service | 
| Members | 6,100 | 
| Owner | Kiwanis International | 
| Revenue | US$767,348 (2006) | 
| Endowment | >US$160,000 (2005) | 
| Website | www.circlek.org | 
Circle K International (CKI) is an international collegiate service organization that is a service leadership program of Kiwanis International. It promotes service, leadership, and fellowship. It has over 13,000 members.