Mochizuki (望月) is a Japanese surname. Notable people with the surname include:
Mochizuki Chiyome (c. late 16th century), noblewoman
Hiroo Mochizuki (born 1936), martial artist
Hisayo Mochizuki (born 1978), voice actress
Isamu Mochizuki (1906-1944), flying ace
Mochizuki Keisuke (1867-1941), cabinet minister in the Taisho and early Showa periods
Masaaki Mochizuki (born 1970), professional wrestler
Minetarō Mochizuki (born 1961), manga artist
Minoru Mochizuki (1907-2003), martial artist
Rokurō Mochizuki (born 1957), film director
Saya Mochizuki (born 1976), model
Shigeyoshi Mochizuki (born 1973), association football player
Shinichi Mochizuki (born 1969), mathematician
Susumu Mochizuki (born 1978), professional wrestler
Takurō Mochizuki (born 1972), mathematician
Tatsuya Mochizuki (born 1963), association football player
Tomomi Mochizuki (born 1958), anime director and producer
Fictional characters with the surname include:
Mochizuki Rokurō, member of the Sanada Ten Braves
Sokaku Mochizuki, from the Fatal Fury series
