Secker is a surname. Notable people with the surname include:
Hans Friedrich Secker (1888–1960), German art historian and museum director Jayne Secker (born 1972), English journalist and newsreader Kathy Secker (1945–2015), British broadcaster Martin Secker (1882–1978), London publisher Patrick Secker (born 1956), Australian politician Thomas Secker (1693–1768), Archbishop of Canterbury William Secker (? – c.1681), Church of England clergyman and religious writer