Inter-American Tropical Tuna Commission
| Logo of the Inter-American Tropical Tuna Commission | |
| Abbreviation | IATTC / Spanish: Comisión Interamericana del Atún Tropical (CIAT) | 
|---|---|
| Formation | 1949 | 
| Type | tuna regional fishery management organisation | 
| Legal status | International organization | 
| Purpose | Fisheries management | 
| Headquarters | La Jolla, San Diego, United States | 
| Area served  | Eastern Pacific Ocean | 
| Membership | 21 members | 
| Director | Arnulfo Franco | 
| Website | www | 
The Inter-American Tropical Tuna Commission (abbreviated IATTC) (Sp.: Comisión Interamericana del Atún Tropical) is a tuna regional fishery management organisation responsible for the conservation and management of tuna and other marine resources in the eastern Pacific Ocean.