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 poet
Bob Hamm (American football) (born 1959), American football player
Harold Hamm (born 1945), American businessman
Hildegard Hamm-Brücher (1921-2016), a German politician
Johann 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 politician
Jon Hamm (born 1971), an American actor
Josip Hamm (1905-1986), a Croatian Slavist
Mia Hamm (born 1972), an American soccer legend
Philip Hamm, Former member of the Wisconsin State Assembly
Twin brothers who are American gymnasts
Paul Hamm (born 1982)
Morgan Hamm (born 1982)
Shannon Hamm (born 1967), a guitar player
Stuart Hamm (born 1960), a bass player
Theodore Hamm, founder of the Hamm's Brewery in St. Paul, Minnesota
