Neamțu is a Romanian ethnonymic surname literally meaning "German person". Notable people with the surname include:
(1954–2010), composer, guitarist and arranger from Moldova, member of the band Noroc (1868–1962), Romanian politician Cristian Neamțu (1980–2002), Romanian football player (1934–1991), Romanian writer Mihail Neamțu (born 1978), Romanian politician