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

Pen may also refer to:

Animals and animal husbandry

  • Pen (enclosure), enclosure for holding animals
  • Pen, an adult female swan
  • Gladius (cephalopod), or pen, a hard internal bodypart found in certain cephalopods
  • Pen (Jamaican cattle farm), a historic livestock farm on the Island of Jamaica
  • Sea pen, an order of Cnidarians in the class Octocorallia

People

  • Jan Pen (1921–2010), Dutch economist
  • Luke Pen (1960–2002), Australian biologist and environmental scientist
  • Peter Pen (born 1972), Slovenian alpine skier
  • Ue-Li Pen (born 1967), Canadian astrophysicist
  • Yehuda Pen (1854–1937), Lithuanian Jewish painter and art teacher

Fictional characters

  • Pen, the name of Finn the Human in the original pilot of Adventure Time
  • Pen, a character from the first season of Battle for Dream Island, an animated web series

Other uses

  • Bullpen, an area at a baseball field where relief pitchers warm up
  • Pen, India, a place
  • Pen (play), by David Marshall Grant
  • "The Pen", an episode of Seinfeld
  • Autoinjector pen, a medical device to deliver a dose of a drug
  • Insulin pen
  • Olympus Pen, a camera
  • Submarine pen, a type of submarine base
  • T-Mobile Park#The 'Pen, a spectator area in Seattle
  • Short for slave pen, an antebellum American slave jail
  • Informal short form for penitentiary

See also

  • PEN (disambiguation)
  • Penn (disambiguation)
  • Pens (disambiguation)
  • Pen Pen (disambiguation)
  • Pen register, or dialed number recorder