Semmel is surname of:

Bernard Semmel (1928–2008), American historian specialising in British imperial history Clarrie Semmel (1910–2000), Australian rules footballer Joan Semmel (born 1932), American feminist painter and professor emeritus in painting K.E. Semmel, American author, literary translator, and disability advocate Paul Semmel (born 1939), American politician from Pennsylvania Ralph Semmel, American engineer and computer scientist Richard Semmel (1875–1950), German entrepreneur and art collector

See also Semmel or Kaiser roll, bread roll from Vienna Semel (disambiguation)