Militaru is a Romanian surname. Notable people with the surname include:
Alina Militaru (born 1982), Romanian long jumper Constantin Militaru (born 1963), Romanian high jumper Damian Militaru (born 1967), Romanian footballer and manager Gigi Militaru (born 1986), Romanian rugby union player Nicolae Militaru (1925–1996), Romanian general
See also Georgeta Militaru-Maşca (born 1954), Romanian rower