Ludewig is a surname. Notable people with the surname include:
Dieterich Bernhard Ludewig (1707–1740), German organist Elsa Ludewig-Verdehr (born 1936), American clarinetist Frank A. Ludewig (1863–1940), Dutch architect Gottfried Ludewig (born 1982), German politician Heinz Ludewig (1889–1950), German footballer Johanna Ludewig (1891–1958), German politician Johannes Ludewig (born 1945), German businessman Jörg Ludewig (born 1975), German cyclist Uwe Ludewig (born 1967), German agricultural scientist
See also Ludwig (disambiguation)