Keiser is a derivation of the Germanic Kaiser surname. It may refer to:
People César Keiser (1925–2007), Swiss artist Herman Keiser (1914–2003), American professional golfer Laurence B. Keiser (1895–1969), a U.S. Army major general who commanded the 2nd Infantry Division in the Korean War Max Keiser (born 1960), a film-maker, broadcaster and former broker and activist Raphaela Keiser (born 1997), Swiss curler Reinhard Keiser (1674–1739), German composer Stephan Keiser, Swiss curler and curling coach
Places Keiser, Arkansas Keiser, Oregon, part of the Salem-Keiser metroplex Keiser, Northumberland County, Pennsylvania
See also Kaiser (disambiguation)