A pen is a writing instrument which applies ink to a surface, usually paper.

Pen may also refer to:

Other common meanings Pen (enclosure), an enclosure for holding animals Bullpen, an area at a baseball field where relief pitchers warm up Submarine pen, a type of submarine base Informal short form for penitentiary

Places Pen, India, Maharashtra, a town and taluka Pen Hill, Somerset, England East Pen Island, also known as Pen Island, Nunavut, Canada Pen (livestock farm), a historic livestock farm on Jamaica

People Surname Albert Pen (1931–2003), French politician from Saint Pierre and Miquelon Catherine Pen (born 1954), French politician representing Saint Pierre and Miquelon Dany Pen (born 1986), Khmer-Canadian human rights activist, artist and educator Eric Pen (born 1992), Cambodian-American boxer Jan Pen (1921–2010), Dutch economist, professor and columnist Luke Pen (1960–2002), Australian biologist and environmental scientist Marta Pen (born 1993), Portuguese middle-distance runner Pen Panha (born 1941), Cambodian politician Pen Phath (born 1948), Cambodian former football manager and player Peter Pen (born 1972), Slovenian alpine skier Pen Ran (c. 1944–c. 1979), Cambodian singer and songwriter Pen Sovann (1936–2016), Cambodian revolutionary and politician Ue-Li Pen (born 1967), Canadian astrophysicist Varlen Pen (1916–1990), Soviet Russian-Korean painter and graphic artist Yudel Pen (1854–1937), Lithuanian Jewish painter and art teacher Le Pen, a surname

Given name Pen Densham (born 14 October 1947), British-Canadian film and television producer, writer and director Pen Foreman, 21st century archaeologist

Nickname Pen Cayetano (born 1954), Belizean artist and musician Pen Dalton (born 1944), English artist, critic and writer Pen Farthing (born 1969), British former Royal Marines commando and founder of the Nowzad Dogs charity Pen Hadow (born 1962), British Arctic region explorer, advocate, adventurer and guide Pen Medina (born 1950), Filipino actor Pen Tennyson (1912–1941), British film director

Stage name Queen Pen, stage name of American rapper Lynise Walters (born 1972) Shawn Pen, a stage name of American rapper, songwriter and producer Tyrone La Shon Wilkins (born 1969)

Fictional characters Pen, the name of Finn the Human in the original pilot of Adventure Time Pen, from the first season of Battle for Dream Island, an animated web series Pen, one of the naughty penguin twins from the Malaysian animated series Chuck Chicken

Other uses Pen (play), by David Marshall Grant "The Pen", an episode of Seinfeld Olympus Pen, a camera The 'Pen, a spectator area in the T-Mobile Park baseball stadium in Seattle PEN International, a worldwide association of writers founded in 1921 Short for slave pen, an antebellum American slave jail Pen, an adult female swan Gladius (cephalopod), or pen, a hard internal body part of certain cephalopods

See also PEN (disambiguation) Autoinjector pen, a medical device to deliver a dose of a drug Insulin pen Pen Basin, Idaho, United States, a valley Pen Formation, a geologic formation in the United States Sea pen, an order of Cnidarians in the class Octocorallia Pen Centre, St. Catharines, Ontario, Canada, a shopping mall Penn (disambiguation) Pens (disambiguation) Pen Pen (disambiguation) Pen register, or dialed number recorder