Ognjen Vranješ (Bosnian pronunciation: ; born 24 October 1989) is a Bosnian professional footballer who plays as a centre back for Super League Greece club AEK Athens, on loan from Anderlecht.
Vranješ started his professional career at Borac Banja Luka, before moving to Red Star Belgrade in 2009. In 2010 he had loan spells with Napredak Kruševac and Sheriff Tiraspol. He then played in Russia for Krasnodar and Spartak Vladikavkaz and in Turkey for Elazığspor and Gaziantepspor. In 2016 Vranješ joined Sporting Gijón, only to sign with Tom Tomsk later that year. A year later he moved to AEK Athens. The following year he was transferred to Anderlecht. In 2019, he was loaned to former club, AEK Athens.
A former youth international for Bosnia and Herzegovina, Vranješ made his senior international debut in 2010, earning over 30 caps until 2018. He represented the nation at their first major tournament, the 2014 FIFA World Cup.