Ivan Ostojić (Serbian Cyrillic: Иван Остојић; born 26 June 1989) is a Serbian professional footballer who plays as a centre-back for Napredak Kruševac.

On 5 August 2011, Ostojić joined Slovak club MFK Košice.

He made his debut on 4 April 2012 when Košice drew 0–0 to Banská Bystrica.

On 1 July 2021, Ostojić joined Russian First League club Baltika Kaliningrad on a three-year contract and a one-year option.

This biographical article related to a Serbian association football defender is a stub.