| Name | Occupation | Birth | Death | Known for | 
|---|
| Diego Abatantuono | Actor | 20-May-1955 |  | Mediterraneo | 
| Dan Abrams | Journalist | 20-May-1966 |  | NBC legal reporter | 
| Ted Allen | TV Personality | 20-May-1965 |  | Food & Wine Queer Eye guy | 
| Margery Allingham | Novelist | 20-May-1904 | 30-Jun-1966 | Albert Campion detective novels | 
| Jon Amiel | Film Director | 20-May-1948 |  | Entrapment | 
| Honoré de Balzac | Novelist | 20-May-1799 | 18-Aug-1850 | Comédie Humaine | 
| Pietro Bembo | Scholar | 20-May-1470 | 18-Jan-1547 | Prose della volgar lingua | 
| John Billingsley | Actor | 20-May-1960 |  | Dr. Phlox on Star Trek: Enterprise | 
| Stanley Bing | Columnist | 20-May-1951 |  | Columnist for Fortune | 
| George Phillips Bond | Astronomer | 20-May-1825 | 17-Feb-1865 | Father of astrophotography | 
| William Bradford | Publisher | 20-May-1663 | 23-May-1752 | Colonial American printer | 
| Eduard Buchner | Chemist | 20-May-1860 | 13-Aug-1917 | Cell-free fermentation | 
| Dean Butler | Actor | 20-May-1956 |  | Little House on the Prairie | 
| John Carney | Politician | 20-May-1956 |  | Congressman, Delaware | 
| Iker Casillas | Soccer | 20-May-1981 |  | Real Madrid goalkeeper | 
| Cher | Singer | 20-May-1946 |  | Sonny and Cher | 
| Raymond Chrétien | Diplomat | 20-May-1942 |  | Canadian Ambassador to the US, 1995-2000 | 
| Hal Clement | Novelist | 20-May-1922 | 29-Oct-2003 | Mission of Gravity | 
| Joe Cocker | Singer/Songwriter | 20-May-1944 |  | Singer-slash-contortionist | 
| Mindy Cohn | Actor | 20-May-1966 |  | Natalie on The Facts of Life | 
| Michael Crapo | Politician | 20-May-1951 |  | US Senator from Idaho | 
| Matt Czuchry | Actor | 20-May-1977 |  | Logan Huntzberger on Gilmore Girls | 
| Moshe Dayan | Politician | 20-May-1915 | 16-Oct-1981 | Israeli military leader | 
| Peter Diamandis | Activist | 20-May-1961 |  | Chairman of the X-Prize Foundation | 
| Lloyd H. Donnell | Engineer | 20-May-1895 | 7-Nov-1997 | Donnell's thin shell theory | 
| Patricia Ellis | Actor | 20-May-1916 | 26-Mar-1970 | Picture Snatcher | 
| John Emery | Actor | 20-May-1905 | 16-Nov-1964 | Rocketship X-M | 
| Girolamo Fabrici | Doctor | 20-May-1537 | 21-May-1619 | De Venarum Ostiolis | 
| Faisal I | Royalty | 20-May-1883 | 8-Sep-1933 | King of Iraq, 1921-33 | 
| Oscar Fanjul | Business | 20-May-1949 |  | Founder of Repsol SA | 
| William Fargo | Business | 20-May-1818 | 3-Aug-1881 | Co-Founder, American Express & Wells Fargo | 
| Edith Fellows | Actor | 20-May-1923 | 26-Jun-2011 | 1930s child actor | 
| Stanley Fields | Actor | 20-May-1883 | 23-Apr-1941 | Way Out West | 
| Harold Ford, Sr. | Politician | 20-May-1945 |  | Congressman from Tennessee, 1975-97 | 
| Stephen F. Gates | Business | 20-May-1946 |  | Former EVP, Conoco-Phillips | 
| Sam Gejdenson | Politician | 20-May-1948 |  | Congressman from Connecticut, 1981-2001 | 
| George Gobel | Comic | 20-May-1919 | 24-Feb-1991 | Hollywood Square | 
| Tony Goldwyn | Actor | 20-May-1960 |  | From the Earth to the Moon | 
| Bud Grant | Football | 20-May-1927 |  | Longtime coach of Minnesota Vikings | 
| John Marshall Harlan | Judge | 20-May-1899 | 29-Dec-1971 | US Supreme Court Justice, 1955-71 | 
| David Hedison | Actor | 20-May-1927 |  | Twice Felix Leiter in Bond films | 
| Wally Herger | Politician | 20-May-1945 |  | Congressman, California 2nd | 
| William Hewlett | Business | 20-May-1913 | 12-Jan-2001 | Co-Founder of Hewlett-Packard | 
| Walter Isaacson | Author | 20-May-1952 |  | Former Managing Editor for Time | 
| Jake Johnson | Actor | 20-May-1979 |  | Nick on New Girl | 
| Israel Kamakawiwo'ole | Singer | 20-May-1959 | 26-Jun-1997 | Hawaiian ukulele musician | 
| Leroy Kelly | Football | 20-May-1942 |  | Cleveland Browns, Hall of Famer | 
| Toussaint L'Ouverture | Military | 20-May-1743 | 7-Apr-1803 | Led the 1791 Slave Rebellion | 
| Edward B. Lewis | Scientist | 20-May-1918 | 21-Jul-2004 | Drosophila researcher, Nobel laureate | 
| Dolley Madison | First Lady | 20-May-1768 | 12-Jul-1849 | Wife of US President James Madison | 
| Cindy Hensley McCain | Relative | 20-May-1954 |  | Wife of John McCain | 
| Matt McCoy | Actor | 20-May-1958 |  | The Hand That Rocks the Cradle | 
| John R. McKernan, Jr. | Politician | 20-May-1948 |  | Governor of Maine, 1987-95 | 
| Michaela McManus | Actor | 20-May-1983 |  | Tara on Awake | 
| Jon Meacham | Journalist | 20-May-1969 |  | Managing Editor of Newsweek, 1998-2010 | 
| Stan Mikita | Hockey | 20-May-1940 |  | Chicago Black Hawks, 1958-80 | 
| John Stuart Mill | Philosopher | 20-May-1806 | 8-May-1873 | Liberal philosopher and essayist | 
| Frank B. Morrison | Politician | 20-May-1905 | 19-Apr-2004 | Governor of Nebraska, 1961-67 | 
| Jose Mujica | Head of State | 20-May-1934 |  | President of Uruguay | 
| Bobby Murcer | Baseball | 20-May-1946 | 12-Jul-2008 | MLB player, Yankees sportscaster | 
| Ron Nehring | Politician | 20-May-1970 |  | Chairman, California Republican Party | 
| Allan Nevins | Historian | 20-May-1890 | 5-Mar-1971 | Civil War historian | 
| Edwin G. Nourse | Economist | 20-May-1883 | 7-Apr-1974 | Council of Economic Advisers, 1946-49 | 
| Sadaharu Oh | Baseball | 20-May-1940 |  | Japan's all-time Home Run King | 
| Timothy Olyphant | Actor | 20-May-1968 |  | Sheriff Bullock on Deadwood | 
| Frédéric Passy | Economist | 20-May-1822 | 12-Jun-1912 | International League for Permanent Peace | 
| David A. Paterson | Politician | 20-May-1954 |  | Governor of New York, 2008-11 | 
| Craig Patrick | Hockey | 20-May-1946 |  | NHL Hall of Famer, coach and manager | 
| Tahmoh Penikett | Actor | 20-May-1975 |  | Battlestar Galactica | 
| Bronson Pinchot | Actor | 20-May-1959 |  | Balki on Perfect Strangers | 
| Gerald Posner | Journalist | 20-May-1954 |  | Case Closed | 
| David Proval | Actor | 20-May-1942 |  | Richie on The Sopranos | 
| Nick Rahall | Politician | 20-May-1949 |  | Congressman, West Virginia 3rd | 
| Gina Ravera | Actor | 20-May-1966 |  | Det. Irene Daniels on The Closer | 
| Busta Rhymes | Rapper | 20-May-1972 |  | Woo-Hah! Got You All In Check | 
| Thomas D. Rice | Comic | 20-May-1808 | 19-Sep-1860 | Played "Jim Crow" | 
| Lyda Roberti | Actor | 20-May-1906 | 12-Mar-1938 | Million Dollar Legs | 
| James C. Rosapepe | Diplomat | 20-May-1951 |  | US Ambassador to Romania, 1998-2001 | 
| John Sarbanes | Politician | 20-May-1962 |  | Congressman, Maryland 3rd | 
| Orville Schell | Author | 20-May-1940 |  | Prominent sinologist | 
| Wilfrid Sellars | Philosopher | 20-May-1912 | 2-Jul-1989 | Empiricism and the Philosophy of Mind | 
| Peter Shore | Politician | 20-May-1924 | 24-Sep-2001 | Former MP, Stepney | 
| Jimmy Stewart | Actor | 20-May-1908 | 2-Jul-1997 | Mr. Smith Goes to Washington | 
| Tony Stewart | Auto Racing | 20-May-1971 |  | 2002 and 2005 Winston Cup champion | 
| Louis Theroux | TV Personality | 20-May-1970 |  | Louis Theroux's Weird Weekends | 
| Dave Thomas | Comic | 20-May-1949 |  | SCTV | 
| William Thornton | Architect | 20-May-1759 | 28-Mar-1828 | First architect of the US Capitol | 
| Goh Chok Tong | Head of State | 20-May-1941 |  | Prime Minister of Singapore, 1990-2004 | 
| Constance Towers | Actor | 20-May-1933 |  | Shock Corridor | 
| Sigrid Undset | Author | 20-May-1882 | 10-Jun-1949 | Kristin Lavransdåtter | 
| Rick Upchurch | Football | 20-May-1952 |  | Denver Broncos WR, 1975-83 | 
| David Wells | Baseball | 20-May-1963 |  | MLB pitcher, wrote Perfect I'm Not | 
| Jane Wiedlin | Musician | 20-May-1958 |  | Guitarist / vocalist for The Go-Go's | 
| Frances E. Willis | Diplomat | 20-May-1899 | 1983 | First Female US Ambassador | 
| Anthony Zerbe | Actor | 20-May-1936 |  | Dog boy in Cool Hand Luke |