Stoycho Mladenov Jr. (; born 19 June 1985) is a former Bulgarian football player, who played as a midfielder.
He started his career in CSKA Sofia. He played for a few clubs, including Naftex Burgas, Lokomotiv Mezdra and FC Vihren Sandanski. He is the son of Stoycho Mladenov, a famous Bulgarian football player and manager.