Hass (or Haß) is a German surname. Notable people with this surname include the following:
Amira Hass (born 1956), an Israeli journalist and authorEric Hass (1905–1980), an American politician and Socialist Labor party presidential candidateHans Hass (1919–2013), an Austrian biologist and diving pioneer; husband of Lotte HassHedwig Haß (1902–1992), a German fencer and Olympic competitorHieronymus Albrecht Hass (1689–1752), a German harpsichord maker; father of J. A. HassJoel Hass (born?), an American mathematician and professorJohann Adolph Hass (1713–1771), a German clavichord maker; son of H. A. HassKarl Hass (1912–2004), a German SS lieutenant-colonel during World War IILeontine Hass (born ?), a British vocal coach, actress, and singerLotte Hass (1928–2015), an Austrian diver and underwater model; wife of Hans HassLudwik Hass (1918–2008), a Polish historianMark Hass (born 1956), an American politicianMike Hass (born 1983), an American footballerRay Hass (born 1977), a South African born Australian swimmerRobert Hass (born 1941), an American Poet Laureate and translatorRobert Bernard Hass (born 1962), an American literary critic, author, and poetRudolph Hass (1892–1952), an American horticulturist, developer of the Hass avocadoSiegfried Haß (1898–1987), a German Wehrmacht general during World War IISteve Hass (born 1975), an American drummerWalter Hass (1911–1987), an American football coach and athletic directorWilbert H. Hass (1906-1959), an American paleontologistYvette Hass (born 1985), a Swedish fashion designer and business woman