Karcher or Kärcher is a surname. Notable people with the surname include:
Alfred Kärcher, German industrialist Alan Karcher (1943–1999), New Jersey politician (father of Ellen Karcher) Amalie Kärcher (1819–1887), German artist Carl Karcher (1917–2008), restaurateur, founder of the Carl's Jr. hamburger chain Ellen Karcher (born 1964), New Jersey politician, state senator (daughter of Alan Karcher) Ernst Friedrich Kärcher (1789–1855), German educator and philologist J. Clarence Karcher (1894-1978), geophysicist and inventor of the reflection seismograph and founder of what would become Texas Instruments Jim Karcher (1914–1997), American football player Karl-Ehrhart Karcher (1918–1973), German World War II Schnellboot commander Ken Karcher (born 1963), American football player Mark Karcher (born 1978), American basketball player Margaret Karcher (1915–2006), American restaurateur
See also Kärcher, a German cleaning equipment manufacturer best known for high-pressure cleaning products