Sports edit

• Katie Boulter (born 1996), British tennis player
• Katie Clark (born 1994), British synchronized swimmer
• Katie Hill (born 1984), Australian wheelchair basketball player
• Katie Hnida (born 1981), American NCAA football player
• Katie Hoff (born 1989), American Olympic swimmer
• Katie Ledecky (born 1997), American swimmer
• Katie Levick (born 1991), English cricketer
• Katie Sowers (born 1986), American football coach
• Katie Swan (born 1999), British tennis player
• Katie Taylor (born 1986), Irish boxer and footballer, five-time world boxing and 2012 Olympic champion
• Katie Thorlakson (born 1985), Canadian soccer player

Television and film edit

• Katie Aselton (born 1978), American actress, director, and producer
• Katie Brown (TV personality) (born 1963), American television presenter
• Katie Couric (born 1957), American journalist
• Katie Cassidy (born 1986), American actress and singer
• Katie Featherston (born 1982), American actress
• Katie Finneran (born 1971), American actress
• Katie Griffin (born 1973), Canadian actress, voice actress, and singer
• Katie Holmes (born 1978), American actress
• Katie Hopkins (born 1975), contestant on The Apprentice (UK) Series 3 and far-right political figure.
• Katie Leclerc (born 1986), American actress
• Katie Leung (born 1987), Scottish actress
• Katie Lucas (born 1988), American actress and writer
• Katie McGrath (born c.  1983), Irish actress and model
• Katie Piper (born 1983), British broadcaster and model, wounded in a 2008 acid attack
• Katie Tallo, Canadian filmmaker, screenwriter, and novelist

Music edit

• Katie Gately, American musician, composer, producer and sound designer
• Katie Gregson-MacLeod (born 2000/2001), Scottish musician
• Katie Kim (born 1993), South Korean-born American singer
• Katie Kissoon (born 1951, Trinidad and Tobago), English singer
• Katie Kittermaster (born 2000), British singer-songwriter
• Katie Knipp, American singer, songwriter, multi-instrumentalist, and blues Americana artist
• Katie Melua (born 1984), Georgian-born British singer-songwriter
• Katie Underwood (born 1975), Australian singer-songwriter
• Katie Waissel (born 1986), British singer and contestant in the seventh series of The X Factor (UK)
• Katie White (born 1983), English singer and front-woman of The Ting Tings

Other edit

• Katie Bouman (born 1989/90), American computer imaging scientist, led the team that captured the first image of a black hole
• Katie Bush, American digital, net, and installation artist
• Katie Davis (missionary), American missionary and author
• Katie Hafner (born 1957), American journalist
• Katie Heaney (born 1986), American writer
• Katie Hillier (born 1973/74), British fashion designer
• Katie Mack (born 1981), American astrophysicist
• Katie May (1981–2016), American model
• Katie McVicar (1856–1886), Canadian trade unionist and shoe worker
• Katie Mitchell (born 1964), English theatre director
• Katie Perry (born 1980), Australian designer
• Katie Price (born 1978), British model also known as "Jordan"
• Katie Rough (2009-2017), English girl killed by a 15-year-old female
• Katie Savannah Steele (born 1992), American model rocketeer
• Katie Taft (born 1972), American artist, photographer, and teacher
• Nissan Katie, a car
• Škoda Katieq, a SUV

• Katie Anderson, in the British comic book series Nemesis Reloaded by Mark Millar
• Katie Bell, in the Harry Potter series by J.K. Rowling
• Katie Brandt-Heppner, a character from the 2020 Andrew Unger novel Once Removed
• Katie Fitch, in the British teen drama Skins
• Katie Forester, a character from the Yo-kai Watch franchise (originally named Fumika Kodama)
• Katie Gardner, in the Percy Jackson series by Rick Riordan
• Katie (Pidge Gunderson) Holt, in the Netflix animated television series Voltron: Legendary Defender
• Katie the Kitten Fairy, from the Rainbow Magic book series
• Katie Knight, in the American musical sitcom television series Big Time Rush
• Katie Logan, a character in The Bold and the Beautiful
• Katie Matlin, in the Canadian television drama Degrassi
• Katie Mitchell, in the 2021 3D computer-animated sci-fi comedy film The Mitchells vs. the Machines
• Katie Peretti, in the CBS soap opera As the World Turns
• Katie Sugden, in the ITV soap opera Emmerdale
• Katie Walker, the Yellow Time Force Ranger in the children's action television series Power Rangers: Time Force
• Katie, from the Teletoon animated series Total Drama
• Katie, from the 2003 film School of Rock
• Katie, from the Nick Jr. animated preschool television series PAW Patrol
• Katie, a Fireside Girl from the Disney animated television series Phineas and Ferb
• Katie, a yellow fluff from Horton Hears a Who
• Katie, a Wild Kratts Kid from the series Wild Kratts
• Katie, a minor character from the 2004 series 6teen

• Katie (monkey), who played Marcel in the American sitcom Friends
• Katie, the Los Angeles Angels of Anaheim Rally Monkey

• Katey
• Katy (disambiguation)