Thadi Balaji is an Indian film actor, who has worked predominantly in Tamil movie industry. He has worked in popular movies like Lingaa, Sura and Mappillai. He is well known for his works in the television field and served as one of the judges in the comedy premiere show, Kalakka Povathu Yaaru?.

He takes part in the Tamil television reality show, Bigg Boss Tamil 2 along with 15 other contestants.