Kummer is a German surname. Notable people with the surname include:

  • Bernhard Kummer (1897–1962), German Germanist
  • Clare Kummer (1873–1958), American composer, lyricist and playwright
  • Clarence Kummer (1899–1930), American jockey
  • Christopher Kummer (born 1975), German economist
  • Corby Kummer (born 1957), American journalist
  • Dirk Kummer (born 1966), German actor, director, and screenwriter
  • Eberhard Kummer (1940–2019), Austrian concert singer, lawyer, and medieval music expert
  • Eduard Kummer, also known as the following Ernst Kummer
  • Eloise Kummer (1916–2008), American actress
  • Ernst Kummer (1810–1893), German mathematician
  • Kummer configuration, a mathematical structure discovered by Ernst
  • Kummer surface, a related geometrical structure discovered by Ernst
  • Ferdinand von Kummer (1816–1900), German general
  • Frederic Arnold Kummer (1873–1943), American author, playwright, and screenwriter
  • Friedrich August Kummer (1797–1879), German cellist and composer
  • Karl Kummer (disambiguation), more than one person
  • Kaspar Kummer (1795–1870), German flautist and composer
  • Lilian Kummer (born 1975), Swiss skier
  • Luise Kummer (born 1993), German biathlete
  • Mario Kummer (born 1962), German cyclist
  • Nicolas Kummer (1882–1954), Luxembourgish gymnast
  • Paul Kummer (1834–1912), priest, taxonomist of Zerbst
  • Patrizia Kummer (born 1987), Swiss snowboarder
  • Samuel Kummer (1968–2024), German organist
  • Siegfried Adolf Kummer (1899–1977), German mystic and Germanic revivalist
  • Sigrud Kummer, (born ? ), German sprint canoeist
  • Thomas Kummer (born 1963), American classicist and teacher
  • Thomas John Kummer (1933–1969), American hair stylist known as Jay Sebring
  • Tilo Kummer (born 1968), German politician
  • Tom Kummer (born 1963), Swiss journalist
  • Wolfgang Kummer (disambiguation), more than one person

See also

  • Cummer (disambiguation)
  • Kommer