| Gregory Pardlo | American writer | 1968 |
| Bernie Parent | Canadian ice hockey player | 1945 |
| Michael Parenti | American academic | 1933 |
| Vilfredo Pareto | Italian economist and sociolo… | 1848–1923 |
| Derek Parfit | British philosopher | 1942–2017 |
| F. E. Pargiter | British civil servant and ori… | 1852–1927 |
| Dj Parisa | Youtuber & DJ | 1972 |
| Robert Parish | American basketball player | 1953 |
| Jacques Parizeau | Canadian politician | 1930–2015 |
| Barbara Park | American juvenile author | 1947–2013 |
| Clara Claiborne Park | Author about autism experienc… | 1923–2010 |
| Jessica Park | | |
| Linda Sue Park | American author of young adul… | 1960 |
| Marion Edwards Park | President of Bryn Mawr College | 1875–1960 |
| Charlie Parker | American jazz saxophonist and… | 1920–1955 |
| Cornelia Parker | English artist | 1956 |
| Dorothy Parker | American poet, short story wr… | 1893–1967 |
| Edward Hazen Parker | American writer | 1823–1896 |
| Francis Wayland Parker | Union Army officer | 1837–1902 |
| Gilbert Parker | Canadian novelist and British… | 1862–1932 |
| Isaac Parker | American politician | 1838–1896 |
| Kathleen Parker | American journalist | 1951 |
| Margot Parker | UK politician | 1943 |
| Martin Parker | English ballad writer | 1624–1647 |
| Nathaniel Parker | British actor | 1962 |
| Robert B. Parker | American crime writer | 1932–2010 |
| Sarah Jessica Parker | American actress | 1965 |
| Sean Parker | American internet technology … | 1979 |
| Theodore Parker | abolitionist | 1810–1860 |
| Gregory Parkes | Roman Catholic bishop | 1964 |
| Stephen D. Parkes | roman-catholic clergyman | 1965 |
| Carolyn Parkhurst | American writer | 1971 |
| C. Northcote Parkinson | British naval historian | 1909–1993 |
| Francis Parkman | American historian | 1823–1893 |
| Adele Parks | British writer | 1969 |
| Gordon Parks | American photographer, musici… | 1912–2006 |
| Rosa Parks | African-American civil rights… | 1913–2005 |
| Suzan-Lori Parks | American writer | 1963 |
| Tim Parks | British writer | 1954 |
| Parmenides | ancient Greek philosopher | -501–-470 BC |
| Luca Parmitano | Italian astronaut | 1976 |
| Charles Stewart Parnell | Irish politician | 1846–1891 |
| Thomas Parnell | Anglo-Irish cleric, writer an… | 1679–1718 |
| Icyang Parod | Taiwanese Amis politician | 1960 |
| Samuli Paronen | | 1917–1974 |
| Nicanor Parra | writer, poet, matematician, f… | 1914–2018 |
| Teresa de la Parra | Venezuelan novelist | 1889–1936 |
| Carolyn Parrish | Canadian politician | 1946 |
| Maxfield Parrish | American painter and illustra… | 1870–1966 |
| Bruce Parry | British documentarian | 1969 |
| Zale Parry | American scuba diver and actr… | 1933 |
| Mike Parson | American politician | 1955 |
| Alan Parsons | audio engineer, musician, and… | 1948 |
| Bob Parsons | United States Marine | 1950 |
| Lucy Parsons | American communist anarchist … | 1853–1942 |
| Talcott Parsons | American sociologist | 1902–1979 |
| Thomas William Parsons | American writer | 1819–1892 |
| Tony Parsons | British writer | 1953 |
| Arvo Pärt | Estonian composer | 1935 |
| Anu Partanen | journalist | 1975 |
| J. R. Partington | British chemist | 1886–1965 |
| Dolly Parton | American singer-songwriter an… | 1946 |
| Andy Partridge | British musician | 1953 |
| Blaise Pascal | French mathematician, physici… | 1623–1662 |
| Francine Pascal | American writer | 1938 |
| Nikol Pashinyan | Prime Minister of Armenia | 1975 |
| Gordon Pask | British psychologist | 1928–1996 |
| Pier Paolo Pasolini | Italian film director, poet, … | 1922–1975 |
| Sidney Webb, 1st Baron Passfield | British Baron and politician | 1859–1947 |
| John Passmore | Australian philosopher | 1914–2004 |
| John Dos Passos | novelist, playwright, poet, j… | 1896–1970 |
| Borís Pasternak | Russian writer | 1890–1960 |
| Louis Pasteur | French chemist and microbiolo… | 1822–1895 |
| Stephan Pastis | American cartoonist | 1968 |
| Jaco Pastorius | Musician, producer, educator | 1951–1987 |
| Patañjali | ancient Indian scholar(s) of … | -200–-150 BC |
| Mansoor Ali Khan Pataudi | Indian cricket player. | 1941–2011 |
| Kenneth Patchen | American writer and poet | 1911–1972 |
| Jonas Pate | American screenwriter, direct… | 1970 |
| Josh Pate | Screenwriter, director and pr… | 1970 |
| A.D. Patel | Fijian politician | 1905–1969 |
| Priti Patel | British politician | 1972 |
| Raj Patel | British academic | 1972 |
| Sardar Vallabhbhai Patel | Indian freedom fighter who fo… | 1875–1950 |
| Walter Pater | essayist, art and literature … | 1839–1894 |
| Andrew Paterson | Scottish photographer | 1877–1948 |
| Don Paterson | Poet | 1963 |
| Isabel Paterson | author and editor | 1886–1961 |
| Katherine Paterson | American children's writer bo… | 1932 |
| Samuel Paterson | English bookseller and auctio… | 1728–1802 |
| Tim Paterson | American computer programmer,… | 1956 |
| Pratibha Patil | 12th President of India | 1934 |
| Mandy Patinkin | American actor and tenor sing… | 1952 |
| Coventry Patmore | English poet | 1823–1896 |
| John of Patmos | Christian saint and author of… | |
| Jan Patočka | Czech essayist and philosopher | 1907–1977 |
| Alan Paton | South African writer and acti… | 1903–1988 |
| Dan Patrick | American sportscaster | 1956 |
| Deval Patrick | 71st Governor of the Commonwe… | 1956 |
| John Patrick | American playwright and scree… | 1905–1995 |
