Jean Welter (May 2, 1901 in Esch-sur-Alzette – March 23, 1977) was a Luxembourgian boxer who competed in the 1924 Summer Olympics and in the 1928 Summer Olympics. In 1924 he was eliminated in the second round of the light heavyweight class after losing his fight to Tom Kirby of the United States. Four years later he was eliminated in the first round of the light heavyweight division when he lost his fight to Donald Carrick of Canada. He was the father of Jean Welter, Jr. who competed in the 1948 Summer Olympics and in the 1952 Summer Olympics also as a boxer.