Sommerfeldt is a surname. Notable people with the surname include:
Christian Sommerfeldt (1746–1811), Norwegian geographer and civil servant Einar Sommerfeldt (1889–1976), Norwegian rower Gunnar Sommerfeldt (1890–1947), Danish actor and film director Hakon Adelsteen Sommerfeldt (1811–1888), Norwegian naval officer and ship designer Harald Sommerfeldt (1886–1966), Norwegian businessman René Sommerfeldt (born 1974), German cross-country skier Wilhelm Preus Sommerfeldt (1881–1957), Norwegian bibliographer and librarian
See also Sommerfeld (disambiguation)