Authors born in 1980
- James Lee Lindsey Jr. Musician, 1980
- James Veitch Comedian, 1980
- Jasika Nicole Actress, 1980
- Jason Babin American Football Player, 1980
- Jason James Richter Actor, 1980
- Jason McCaslin Musician, 1980
- Jason Ritter Actor, 1980
- Jason Schwartzman Actor, 1980
- Jason Segel Actor, 1980
- Jason T. Smith Businessman, 1980
- Jason Wade Singer, 1980
- Jason Woliner Director, 1980
- Jazmyn Simon Actress, 1980
- Jenna Dewan Actress, 1980
- Jennie Finch Athlete, 1980
- Jennifer Armentrout Writer, 1980
- Jennifer Armintrout Author, 1980
- Jenny Han Author, 1980
- Jenson Button Racecar Driver, 1980
- Jeremy Jackson Actor, 1980
- Jessica Barth Actress, 1980
- Jessica Pare Actress, 1980
- Jessica Simpson Singer, 1980
- Jigme Khesar Namgyel Wangchuck Royalty, 1980
- Jill Paice Actress, 1980
- Joanne Froggatt Actress, 1980
- Joe Kennedy III Lawyer, 1980
- Joe King Guitarist, 1980
- John Terry Football Player, 1980
- Johnny Borrell Guitarist, 1980
- Jon Micah Sumrall Lead Vocalist, 1980
- Jordana Brewster Actress, 1980
- Joseph P. Kennedy III Lawyer, 1980
- Josh Logan Singer-Songwriter, 1980
- Josh Young Stage Actor, 1980
- Joshua Cohen Novelist, 1980
- Julia Bacha Film Maker, 1980
- Justin Amash Lawyer, 1980
- K.K. Raghava Artist, 1980
- Kameron Hurley Writer, 1980