Niemiec is a Polish-language surname literally meaning "German person". Notable people with this surname include:
Al Niemiec (1911–1995), American baseball player Bohuslav Niemiec (born 1982), Czech politician of Polish ethnicity Courtney Niemiec (born 1992), American soccer player Jan Niemiec (1958–2020), Polish-born Ukrainian Roman Catholic bishop Jan Niemiec (1941–2017), Polish canoeist John Niemiec (1901–1976), American footballer Jona Niemiec (born 2001), German footballer Franciszek Niemiec (born 1950), Polish basketball player Patryk Niemiec (born 1997), Polish volleyball player Przemysław Niemiec (born 1980), Polish cyclist Szymon Niemiec (born 1977), Polish free jurisdiction clergyman and gay activist Wojciech Niemiec (1956–2021), Polish footballer