Toncho Dimitrov Tonchev (; born December 1, 1972) is a Bulgarian boxer. He won the Lightweight Silver medal at the 1996 Summer Olympics. Tonchev also represented his native country at the 1992 Summer Olympics in Barcelona, Spain.
In 1996 he won the silver medal at the European Amateur Boxing Championships in Vejle, Denmark. Tontchev turned professional in 1997.