Welter is a Germanic surname that may refer to:
Alexandre Welter (born 1953), Brazilian sailor Ariadne Welter (1930–1998), Mexican movie actress Charles Welter (1880–1972), Dutch minister Emmi Welter (1887–1971), German politician Erich Welter (1900-1982), German journalist Gabriel Welter (1890–1954), German archaeologist. Jean Welter (1901–1977), Luxembourgish boxer Jennifer Welter (born 1977), American football player and coach Kurt Welter (1916–1949), German fighter ace Marion Welter (born 1965), Luxembourgish singer Michel Welter (1859–1924), Luxembourgish politician Nik Welter (1871–1951), Luxembourgish writer and politician