Hamm is an English, German, Scottish, Scotch-Irish, French, Welsh and Norwegian surname. Most Hamm families in the United States are of Scottish or Scotch-Irish descent. Notable people with the surname include:
Bob Hamm (1934-2009), American poetBob Hamm (American football) (born 1959), American football playerHarold Hamm (born 1945), American businessmanHildegard Hamm-Brücher (1921-2016), a German politicianJohann Valentin Hamm (1811-1874), also known as J.V. Hamm, composer of "Milanollo", the regimental quick march of the Coldstream Guards and the Governor General's Foot Guards.John Hamm (born 1938), a Canadian politicianJon Hamm (born 1971), an American actorJosip Hamm (1905-1986), a Croatian SlavistMia Hamm (born 1972), an American soccer legendPhilip Hamm, Former member of the Wisconsin State AssemblyTwin brothers who are American gymnastsPaul Hamm (born 1982)Morgan Hamm (born 1982)Shannon Hamm (born 1967), a guitar playerStuart Hamm (born 1960), a bass playerTheodore Hamm, founder of the Hamm's Brewery in St. Paul, Minnesota