| Birth Date: | 22 April 1983 |
| Birth Place: | Zagreb, Yugoslavia |
Igor Čerenšek (born April 22, 1983) is a freestyle swimmer from Croatia, who made his Olympic debut for his native country at the 2004 Summer Olympics in Athens, Greece. There he was eliminated in the qualifying heats (13th place) of the Men's 4 × 100 m Freestyle Relay, alongside Duje Draganja, Mario Delač and Ivan Mladina.[1] He is a 2007 graduate of the University of Minnesota.