Werlein is a German language surname and a variant of Werle. Notable people with the name include:Betty Werlein Carter (1910–2000), American publisher, editor and writer Elizebeth Thomas Werlein (1883–1946), Historical preservationist Ewing Werlein Jr. (1936), American judge P. P. Werlein (1812–1885), American music publisher, piano dealer, and musical instrument retailer based in New Orleans Sarah Günther-Werlein (1983), German former footballer