Gummer is a surname. Notable people with the surname include:

• Alexandra Gummer (born 1992), Australian soccer player
• Ben Gummer (born 1978), British Conservative Party politician
• Don Gummer (born 1946), American sculptor.
• George Gummer, Welsh rugby league footballer
• Grace Gummer (born 1986), American actress
• Jason Gummer (born 1967), Welsh footballer
• John Gummer, Baron Deben (born 1939), British Conservative Party politician
• Mamie Gummer (born 1983), American actress
• Peter Gummer, Baron Chadlington (born 1942), British businessman
• Scott Gummer, American writer and editor
• Tom Gummer (1894 – 1982), British boxer

• Gummer, subdivision of the municipality of Karneid, South Tyrol, Italy
• Gummer and Ford, architectural firm founded in 1923 in Auckland, New Zealand
• Gummer's How, hill in the southern part of the Lake District, England