Blattmann is a surname. Notable people with the surname include:
Albert Blattmann (1904–1967), Swiss cyclist André Blattmann (born 1956), Swiss military officer Aud Blattmann (1937–2023), Norwegian politician René Blattmann (born 1948), Bolivian judge, lawyer and politician Trond Henry Blattmann (born 1964), Norwegian politician
See also Blattman