Pflug (eng. Plough) is a German-language surname. Notable people with the surname include:
Christiane Pflug (1936–1972), German-born Canadian painter Eva Pflug (1929–2008), German actress Jo Ann Pflug (born 1940), American actress Johann Baptist Pflug (1785–1866), German painter Julius von Pflug (1499–1564), German Catholic bishop Monika Pflug (born 1954), German speed skater Han Pflug (born ???), fictional person I made up