Authors born in 1984
- Kelly Osbourne Singer-Songwriter, 1984
- Kenny Wormald Actor, 1984
- Kerry Bishe Actress, 1984
- Kevin Jorgeson Athlete, 1984
- Kevin Zegers Actor, 1984
- Khloe Kardashian Television Presenter, 1984
- Kid Cudi Rapper, 1984
- Kim Shaw Actress, 1984
- Kirsten Storms Actress, 1984
- Kristen Soltis Anderson Pollster, 1984
- Kyle Mooney Actor, 1984
- Kyle Schmid Actor, 1984
- LaMarr Woodley American Football Player, 1984
- Lara Jean Chorostecki Actor, 1984
- Laura Vandervoort Television Actor, 1984
- Lauren Bush Model, 1984
- Lauren DeStefano Author, 1984
- Lauren Gibbs Athlete, 1984
- Lauren London Actress, 1984
- LeBron James Basketball Player, 1984
- Lee Thompson Young Actor, 1984
- Leila Bekhti Actress, 1984
- Lena Waithe Actress, 1984
- Lenny Platt Actor, 1984
- Leslie Dewan Entrepreneur, 1984
- Lindsey Haun Actress, 1984
- Lindsey Vonn Alpine Skier, 1984
- Lucas Grabeel Actor, 1984
- Ludi Lin Actor, 1984
- Luke Grimes Actor, 1984
- Luke Treadaway Actor, 1984
- Magdalena Frackowiak Model, 1984
- Mandy Moore Singer, 1984
- Marc-Andre Grondin Actor, 1984
- Marek Ćwiertnia Singer-Songwriter, 1984
- Marie Lu Author, 1984
- Marion Bartoli Tennis Player, 1984
- Mark de Jonge Rower, 1984
- Mark Foster Singer-Songwriter, 1984
- Mark Zuckerberg Entrepreneur, 1984