Katie is an English feminine name. It is a pet form of Katherine, Kate, Kaitlynn and their related forms. It is frequently used on its own. It may refer to:

In sports:

  • Katie, the Los Angeles Angels of Anaheim Rally Monkey
  • Katie Hnida, American NCAA football player
  • Katie Hoff, American Olympic swimmer
  • Katie Thorlakson, Canadian football (soccer) forward

In fiction:

  • Katie, character from Total Drama Island and Total Drama Action
  • Katie Bell, character from the Harry Potter series by J.K. Rowling
  • Katie Fitch, character in the British teen drama Skins
  • Katie Matlin, character in the Canadian drama Degrassi
  • Katie Sugden, character in the ITV soap opera Emmerdale
  • Katie Walker, the Yellow Time Force Ranger in Power Rangers: Time Force

In television and film:

  • Katie, a syndicated American talk show hosted by Katie Couric which premiered September 10, 2012
  • Katie Brown, American television show host
  • Katie Cassidy, American singer and actress
  • Katie Finneran, American actress
  • Katie Griffin, Canadian actress, voice actress, and singer
  • Katie Holmes, American television and film actress
  • Katie Hopkins, the self-proclaimed "Pantomime Villain" of the third series of The Apprentice (UK)
  • Katie Leclerc, American actress
  • Katie Leung, Scottish actress
  • Katie McGrath, Irish actress and model
  • Katie Piper, British broadcaster and model, wounded in a 2008 acid attack
  • Katie Tippel, 1975 film by Paul Verhoeven
  • Katie (monkey), animal who played Marcel in the series Friends

In modeling:

  • Katie Price, British model also known as "Jordan"

In literature:

  • Katie Couric, American journalist
  • Katie Hafner, American journalist
  • Katie.com, autobiographical book which details how author Katie Tarbox was stalked and almost molested at age 14 by Frank Kufrovich

In music:

  • Katie Kissoon, English singer
  • Katie Melua (born 1984), Georgian singer
  • Katie Underwood, Australian singer-songwriter
  • KT Tunstall, Scottish singer
  • Katie Waissel, British singer and contestant in the seventh series of The X Factor (UK)
  • Katie White, English singer and front-woman of The Ting Tings

In fashion:

  • Katie Perry (born 1980), Australian designer

In ships:

  • USS Katie (SP-660), a United States Navy patrol boat in commission from 1917 to 1918