Authors Born on
- Novella Carpenter Author, 1972
- Nuh Ha Mim Keller Scholar, 1954
- Nujood Ali Public Person, 1998
- Nyogen Senzaki Monk, 876
- Nyoshul Khenpo Rinpoche Monk, 1932
- Odo of Cluny Saint, 880
- Oenomaus King, 0
- Oh Eun-young Model, 1985
- Okechukwu Ndibe Novelist, 1960
- Okkyung Lee Cellist, 1975
- Olaf Carlson-Wee Businessman, 1990
- Olaudah Equiano Writer, 1745
- Olin Miller Businessman, 0
- Oliver Burkeman Journalist, 1975
- Oliver DeMille Author, 1968
- Oliver Emberton Businessman, 0
- Oliver Gaspirtz Artist, 1970
- Oliver St. John Statesman, 1598
- Oliver Van DeMille Author, 1968
- Omar Ahmad Businessperson, 1959
- Opal Tometi Writer, 1984
- Orison Swett Marden Writer, 1848
- Orville Peck Musician, 0
- Ory Okolloh Activist, 1977
- Oscar Munoz Businessman, 1959
- Outkast Musician, 1991
- Owen Feltham Writer, 1602
- Owen Glendower Royalty, 1359
- Oxiris Barbot, MD Doctor, 0
- P. E. Cleator Astronaut, 1908
- P. W. Singer Scientist, 1974
- Paavo Olavi Airola Nutritionist, 1918
- Pablo Amaringo Painter, 1943
- Pablo Tusset Writer, 1965
- Pachomius the Great Monk, 292
- Paco Underhill Author, 1950
- Paddy Johnson Art Critic, 1901
- Padmasree Warrior Engineer, 1961
- Paige Craig Businessman, 1975
- Pamala Oslie Author, 1952