Kouassi Kouadja (born 22 June 1995) is an Ivorian footballer, who plays as a defender for Haras El Hodood.
In February 2016, Kouadja signed for Kazakhstan Premier League side FC Aktobe.
On 29 March 2017, Kouadja re-signed for FC Slutsk, leaving the club when his contract expired 8 June of the same year.