Valchanov () (feminine form: Valchanova ()) is a Bulgarian patronymic surname, deriving from the given name Valchan (). Notable people with the surname include:
(born 1966), Bulgarian actress (born 1975), Bulgarian footballer , Bulgarian archaeologist (1915–1984), Bulgarian cameraman (1932–2007), Bulgarian footballer , Bulgarian-Romanian army interpreter (born 1953), Bulgarian writer and journalist Ivan Valchanov (born 1991), Bulgarian footballer Magdalina Valchanova (born 1977), Bulgarian model (born 1948), Bulgarian folk musician Petar Valchanov (born 1982), Bulgarian filmmaker Rangel Valchanov (1928–2013), Bulgarian actor (1940–2016), Bulgarian director and screenwriter (1915–2017), Bulgarian sailor