Welter as a surname may refer to:

• Alexandre Welter (born 1953), Brazilian sailor
• Jean Welter (born 1901), Luxembourgian boxer
• Kurt Welter (1916–1949), German fighter ace
• Marion Welter (born 1965), Luxembourgian singer
• Michel Welter (1859–1924), Luxembourgian politician
• Nik Welter (1871–1951), Luxembourgian writer and politician

Welter may also refer to:

• Welter Racing, French sports car maker

See also

• Weltering