Authors born in 1964
- John Salley Basketball Player, 1964
- John Sununu Politician, 1964
- John Tempesta Drummer, 1964
- Jonathan Ames Author, 1964
- Jonathan Franklin Journalist, 1964
- Jonathan Lethem Novelist, 1964
- Jose Canseco Baseball Player, 1964
- Joseph O'Neill Novelist, 1964
- Josh Pais Coach, 1964
- Joss Whedon Screenwriter, 1964
- Kamala Harris Politician, 1964
- Kamala Lopez Actress, 1964
- Kaori Ekuni Author, 1964
- Karen Marie Moning Author, 1964
- Karen Rose Novelist, 1964
- Karen White Author, 1964
- Karin Ireland Author, 1964
- Kat Richardson Author, 1964
- Kate DiCamillo Writer, 1964
- Kate Flannery Actress, 1964
- Katherine Boo Journalist, 1964
- Kathryn Flett Critic, 1964
- Katie MacAlister Author, 1964
- Katty Kay Journalist, 1964
- Keanu Reeves Actor, 1964
- Keiko Nobumoto Screenwriter, 1964
- Keith Pelley Sports Official, 1964
- Kerry King Musician, 1964
- Kevin Frazier Actor, 1964
- Kevin Michael Richardson Actor, 1964
- Kevin Patterson Writer, 1964
- Kevin Saunderson Music Producer, 1964
- Kim Jee-woon Film Director, 1964
- Kim Richards Actress, 1964
- Kurt Carr Composer, 1964
- L'Wren Scott Model, 1964
- Laird Hamilton Surfer, 1964
- Lars Mikkelsen Television Actor, 1964
- Laura Harring Television Actor, 1964
- Laura Ingraham Radio Personality, 1964