Dermer is a surname. Notable people with the surname include:
Brandon Dermer (born 1986), American film director Bob Dermer (born 1946), Canadian actor David Dermer (born 1963), American politician Ed Dermer (born 1957), Australian politician Lawrence Dermer (born 1962), American songwriter Richard Dermer (1939–2014), American restaurateur Ron Dermer (born 1971), American-born Israeli political consultant and diplomat Thomas Dermer (–1620), Americannavigator and explorer