Mochizuki (望月) is a Japanese surname. Notable people with the surname include:
Mochizuki Chiyome (c. late 16th century), noblewomanHiroo Mochizuki (born 1936), martial artistHisayo Mochizuki (born 1978), voice actressIsamu Mochizuki (1906-1944), flying aceMochizuki Keisuke (1867-1941), cabinet minister in the Taisho and early Showa periodsMasaaki Mochizuki (born 1970), professional wrestlerMinetarō Mochizuki (born 1961), manga artistMinoru Mochizuki (1907-2003), martial artistRokurō Mochizuki (born 1957), film directorSaya Mochizuki (born 1976), modelShigeyoshi Mochizuki (born 1973), association football playerShinichi Mochizuki (born 1969), mathematicianSusumu Mochizuki (born 1978), professional wrestlerTakurō Mochizuki (born 1972), mathematicianTatsuya Mochizuki (born 1963), association football playerTomomi Mochizuki (born 1958), anime director and producer
Fictional characters with the surname include:
Mochizuki Rokurō, member of the Sanada Ten BravesSokaku Mochizuki, from the Fatal Fury series