Authors born in 1974
- Jen Kirkman Comedian, 1974
- Jenna Fischer Actress, 1974
- Jenna Jameson Entrepreneur, 1974
- Jennifer Lien Actress, 1974
- Jennifer Nettles Singer, 1974
- Jeremy Robinson Writer, 1974
- Jeremy Sisto Actor, 1974
- Jerome Adams Admiral, 1974
- Jerry O'Connell Actor, 1974
- Jess Row Writer, 1974
- Jewel Kilcher Singer-Songwriter, 1974
- Jhonen Vasquez Comics Writer, 1974
- Jill Kargman Actor, 1974
- Jillian Michaels Businesswoman, 1974
- Jim C. Hines Writer, 1974
- Jimmy Fallon Comedian, 1974
- Jimmy Gomez Politician, 1974
- Jo Cox Politician, 1974
- Joaquin Castro Politician, 1974
- Joaquin Phoenix Actor, 1974
- Joe Abercrombie Writer, 1974
- Joe Madureira Comedian, 1974
- Joe Meno Novelist, 1974
- Joe Principe Musician, 1974
- Joel Edgerton Actor, 1974
- John Jeremiah Sullivan Writer, 1974
- John Rich Singer-Songwriter, 1974
- Johnny Iuzzini Chef, 1974
- Jon Oringer Programmer, 1974
- Jonah Peretti Entrepreneur, 1974
- Jorge Luis Flores Sanchez Disc Jockey, 1974
- Joseph Gatt Actor, 1974
- Joseph Kosinski Film Director, 1974
- Joseph Mawle Actor, 1974
- Josh Radnor Actor, 1974
- Joshua Ferris Author, 1974
- Joshua Harris Pastor, 1974
- Joshua Morrow Actor, 1974
- Joshua Oppenheimer Film Director, 1974
- Joy Bryant Actress, 1974