| Oluseyi Petinrin | |
| Honorific Prefix: | Air Chief Marshal |
| Office1: | Chief of Defence Staff |
| Term Start1: | 8 September 2010 |
| Term End1: | 4 October 2012 |
| Predecessor1: | Paul Dike |
| Successor1: | Ola Ibrahim |
| Office2: | Chief of Air Staff |
| Term Start2: | 20 August 2008 |
| Term End2: | 8 September 2010 |
| Predecessor2: | Paul Dike |
| Successor2: | Mohammed Dikko Umar |
| Birth Date: | 19 January 1955 |
| Branch: | Nigerian Air Force |
| Rank: | Air Chief Marshal |
Oluseyi Petinrin (born 19 January 1955) is a retired air chief marshal in the Nigerian Air Force, who was Chief of the Defence Staff of Nigeria from 2010 to 2012. Prior to his appointment as Chief of Defence Staff, he had held the position of Chief of Air Staff.[1] [2]
Petinrin attended the Federal Government College, Sokoto.[3]