| 40891 | April 9 | Birth | 1946 – Sara Parkin, Scottish activist and politician |
| 40892 | April 9 | Birth | 1946 – David Webb, English footballer, coach, and manager |
| 40893 | April 9 | Birth | 1947 – Giovanni Andrea Cornia, Italian economist and academic |
| 40894 | April 9 | Birth | 1948 – Jaya Bachchan, Indian actress and politician |
| 40895 | April 9 | Birth | 1948 – Michel Parizeau, Canadian ice hockey player and coach |
| 40896 | April 9 | Birth | 1948 – Patty Pravo, Italian singer |
| 40897 | April 9 | Birth | 1949 – Tony Cragg, English sculptor |
| 40898 | April 9 | Birth | 1952 – Robert Clark, American author |
| 40899 | April 9 | Birth | 1952 – Tania Tsanaklidou, Greek singer and actress |
| 40900 | April 9 | Birth | 1953 – John Howard, English singer-songwriter and pianist |
| 40901 | April 9 | Birth | 1953 – Hal Ketchum, American singer-songwriter and guitarist |
| 40902 | April 9 | Birth | 1954 – Ken Kalfus, American journalist and author |
| 40903 | April 9 | Birth | 1954 – Dennis Quaid, American actor and producer |
| 40904 | April 9 | Birth | 1954 – Iain Duncan Smith, British soldier and politician, Secretary of State for Work and Pensions |
| 40905 | April 9 | Birth | 1955 – Yamina Benguigui, French director and politician |
| 40906 | April 9 | Birth | 1955 – Joolz Denby, English poet and author |
| 40907 | April 9 | Birth | 1955 – Kate Heyhoe, American author and blogger |
| 40908 | April 9 | Birth | 1956 – Michael Benton, Scottish-English paleontologist and academic |
| 40909 | April 9 | Birth | 1956 – Michael Hashim, American saxophonist |
| 40910 | April 9 | Birth | 1956 – Miguel Ángel Russo, Argentinian footballer and coach |
| 40911 | April 9 | Birth | 1956 – Nigel Shadbolt, English computer scientist and academic |
| 40912 | April 9 | Birth | 1956 – Vahur Sova, Estonian architect |
| 40913 | April 9 | Birth | 1956 – Marina Zueva, Russian ice dancer and coach |
| 40914 | April 9 | Birth | 1957 – Seve Ballesteros, Spanish golfer and architect (d. 2011) |
| 40915 | April 9 | Birth | 1957 – Martin Margiela, Belgian fashion designer |
| 40916 | April 9 | Birth | 1958 – Tony Sibson, English boxer |
| 40917 | April 9 | Birth | 1958 – Nigel Slater, English journalist and author |
| 40918 | April 9 | Birth | 1959 – Bernard Jenkin, English businessman and politician, Shadow Secretary of State for Defence |
| 40919 | April 9 | Birth | 1960 – Jaak Aab, Estonian educator and politician, Minister of Social Affairs of Estonia |
| 40920 | April 9 | Birth | 1961 – Mark Kelly, Irish keyboard player (Marillion and DeeExpus) |