Gummel may refer to: In people: Margitta Gummel (1941–2021), an athlete from East Germany Hermann Gummel (1923–2022), a German-born physicist and pioneer in semiconductor industry In other uses: Gumel, or Gummel, a town and traditional emirate in Jigawa State, Nigeria Gummel–Poon model, a model of the bipolar junction transistor Gummel plot, transistor plot