Appel is a surname. Notable people with the surname include:
Alfred Appel (1934–2009), American scholarly expert on Vladimir Nabokov and author
Allen Appel (born 1945), American novelist
Andrew Appel (born 1960), American computer scientist and author
Anne Milano Appel, American translator
Arthur Appel, American computer scientist and author, presented the first algorithm for ray casting as a form of image rendering
Benjamin Appel (1907–1977), American novelist
Bluma Appel (1919–2007), Canadian philanthropist
Bram Appel (1921–1997), Dutch footballer
Brent R. Appel (born 1950), American Justice of the Iowa Supreme Court
Carmela Appel (born 1996), Dutch cricketer
Chris Appel, American basketball player
Colette Appel (born 1986), American pair skater
Conrad Appel (born 1951), American businessman and politician
David Appel (born 1950), Israeli businessman
David Appel (born 1981), Czech ice hockey player
Elly Appel-Vessies (born 1952), Dutch tennis player
Eric Appel (born 1980), American television/film writer, director, and producer
Ernesto Ruffo Appel (born 1952), Mexican politician
Frank Appel (born 1961), German CEO of Deutsche Post
Fredrik Appel (1884–1962), Danish architect
Gaby Appel (born 1958), German field hockey player
Gerald B. Appel (born 1947), American nephrologist
Gotfred Appel (1924–1992), Danish communist ideologist, known for his affiliation with the Blekinge Street Gang
Hans Appel (1911–1973), German footballer
Izaak Appel (1905–1941), Polish chess master
Jacob Appel (1680–1751), Dutch painter
Jacob M. Appel (born 1973), American bioethicist
Jan Appel (1890–1985), German revolutionary
Jayde Appel (born 1994), Australian water polo player
Jayne Appel (born 1988), American professional basketball player
Jekaterina Appel (born 1981), Estonian artistic gymnast
Jesper Appel (born 1993), Swedish professional ice hockey player
Johann von Appel (1826–1906), Austrian governor of Bosnia and Herzegovina
John Appel (1859–1929), Australian politician
John Appel (born 1958), Dutch documentary filmmaker
Karel Appel (1921–2006), Dutch painter
Kenneth Appel (1932–2013), American mathematician
Kevin Appel (born 1967), American painter and university professor
Lawrence Appel, American nutrition researcher
Libby Appel (born 1937), American artistic director
Marianne Appel (1913–1988), American artist and puppet designer
Mark Appel (born 1991), American professional baseball player
Marty Appel (born 1948), American public relations and sports management executive
Mike Appel (born 1942), American record producer/manager
Otto Appel (1867–1952), German botanist and agriculturalist
Peter A. Appel (born 1962), American entrepreneur and business executive
Peter H. Appel (born 1964), American management consultant and government official
Reinhard Appel (1927–2011), German journalist and television presenter
Richard Appel (born 1963), American television writer and producer
Rolf Appel (1921–2012), German inorganic chemist
Ron Appel (born 1959), Swiss bioinformatician
Sam Appel (1871–1947), American actor
Scott Appel (1954–2003), American musician and musicologist
Staci Appel (born 1966), American politician
Stanley Appel (born 1933), British television producer and director
See also:
Paul Émile Appell (also known as Paul Émile Appel) (1855–1930), French mathematician
