Giselher, Gisilher, Gisiler, or Giseler is a Germanic masculine given name. It may refer to:Giselher of Burgundy, Burgundian king Gisilher, German ecclesiastic Giselher Klebe (1925–2009), German composer Giselher Schubert, German musicologist Giselher Wilke (1922–2007), German army officer Giselher Wirsing (1907–1975), right-wing German journalist, author, and foreign policy expert