Authors born in 1947
- John C. Maxwell Author, 1947
- John Clifford Director, 1947
- John Dykstra Artist, 1947
- John Kitzhaber Physician, 1947
- John Kline Politician, 1947
- John Larroquette Actor, 1947
- John P. Kotter Professor, 1947
- John Perry Barlow Poet, 1947
- John Ralston Saul Writer, 1947
- John Ratzenberger Actor, 1947
- John Reid Politician, 1947
- John Stossel Author, 1947
- John Thorn Commentator, 1947
- John Yarmuth Politician, 1947
- Johnny Bench Baseball Player, 1947
- Johnny Miller Golfer, 1947
- Jon Corzine Financier, 1947
- Jon Katz Journalist, 1947
- Jon Landau Musician, 1947
- Jonathan Banks Actor, 1947
- Jonathan Pryce Actor, 1947
- Josep Borrell Politician, 1947
- Joseph Charles "Joey" Molland Composer, 1947
- Judd Gregg Politician, 1947
- Jude Deveraux Author, 1947
- K. Anders Ericsson Psychologist, 1947
- Kabir Helminski Teacher, 1947
- Kareem Abdul-Jabbar Basketball Player, 1947
- Karen Elizabeth Gordon Author, 1947
- Karen Katz Author, 1947
- Karen McCarthy Politician, 1947
- Karl-Henrik Robert Scientist, 1947
- Karyn Calabrese Restaurateur, 1947
- Kate Clinton Author, 1947
- Katharine Hamnett Fashion Designer, 1947
- Kathleen Norris Poet, 1947
- Kathrine Switzer Runner, 1947
- Kathy Acker Poet, 1947
- Kay Robertson Television Presenter, 1947
- Kay Warren Anthropologist, 1947