Authors born in 1988
- James Arthur Singer, 1988
- Jamie Campbell Bower Actor, 1988
- Jamie xx Musician, 1988
- Janel Parrish Actress, 1988
- Javier Hernandez Football Player, 1988
- Jencarlos Canela Singer-Songwriter, 1988
- Jeremy Lin Basketball Player, 1988
- Jesse Plemons Actor, 1988
- Jessica Lowndes Actress, 1988
- Jessie Buckley Singer, 1988
- Jessie J Singer-Songwriter, 1988
- Jessie James Decker Singer-Songwriter, 1988
- Jhene Aiko Singer-Songwriter, 1988
- Jiah Khan Actress, 1988
- Jillian Rose Banks Singer-Songwriter, 1988
- Joan Smalls Supermodel, 1988
- Joe Cole Actor, 1988
- John Bradley-West Actor, 1988
- Jonathan Keltz Actor, 1988
- Jonathan Toews Ice Hockey Player, 1988
- Jonny Weston Actor, 1988
- Jordan Davis Singer, 1988
- Jordan Rodgers Sports Commentator, 1988
- Jordin Sparks Singer-Songwriter, 1988
- Josh Bowman Actor, 1988
- Josh Dun Musician, 1988
- Jovan Adepo Actor, 1988
- Julianne Hough Singer, 1988
- Justin Gaethje Mixed Martial Artist, 1988
- Kacey Musgraves Singer-Songwriter, 1988
- Kaci Brown Singer, 1988
- Kalan Sherrard Puppeteer, 1988
- Kaniela Ing Politician, 1988
- Kanon Wakeshima Musician, 1988
- Karrueche Tran Actress, 1988
- Kate Leth Writer, 1988
- Katherine Reutter Short Track Speed Skater, 1988
- Katie Pavlich Commentator, 1988
- Kayla Mueller Human Rights Activist, 1988
- Kayleigh McEnany Political Commentator, 1988