Suppan is a Germanized form of the Slavic surname Zupan (or Župan). Notable people with the surname include:
Armin Suppan (born 1959), Austrian musician Arnold Suppan (born 1945), Austrian historian Gernot Suppan (born 1985), Austrian footballer Jakob Suppan (1734–1810), composer from the Holy Roman Empire Jeff Suppan (born 1975), American pitcher Sigismund Suppan (1814–1881), bishop of Banská Bystrica Wolfgang Suppan (1933–2015), Austrian musicologist
See also