| 44491 | April 17 | Birth | 1984 – Rosanna Davison, Irish model and actress, Miss World 2003 |
| 44492 | April 17 | Birth | 1984 – Jed Lowrie, American baseball player |
| 44493 | April 17 | Birth | 1984 – Raffaele Palladino, Italian footballer |
| 44494 | April 17 | Birth | 1985 – Rooney Mara, American actress |
| 44495 | April 17 | Birth | 1985 – Luke Mitchell, Australian model and actor |
| 44496 | April 17 | Birth | 1985 – William Snape, English actor |
| 44497 | April 17 | Birth | 1985 – Jo-Wilfried Tsonga, French tennis player |
| 44498 | April 17 | Birth | 1986 – Romain Grosjean, French race car driver |
| 44499 | April 17 | Birth | 1987 – Eelco Sintnicolaas, Dutch decathlete |
| 44500 | April 17 | Birth | 1987 – Jacqueline MacInnes Wood, Canadian actress and singer |
| 44501 | April 17 | Birth | 1988 – Takahiro Moriuchi, Japanese singer-songwriter (ONE OK ROCK and News) |
| 44502 | April 17 | Birth | 1989 – Zara Aldana, Filipino model |
| 44503 | April 17 | Birth | 1989 – Javed Mohammed, Trinidadian footballer |
| 44504 | April 17 | Birth | 1989 – Paraskevi Papachristou, Greek triple jumper |
| 44505 | April 17 | Birth | 1990 – Jonathan Brown, Welsh footballer |
| 44506 | April 17 | Birth | 1990 – Gia Mantegna, American actress |
| 44507 | April 17 | Birth | 1991 – Tessa James, Australian actress |
| 44508 | April 17 | Birth | 1992 – Noni Răzvan Ene, Romanian actor, singer, and dancer |
| 44509 | April 17 | Birth | 1992 – Lachlan Maranta, Australian rugby league footballer. |
| 44510 | April 17 | Birth | 1993 – Race Imboden, American fencer |
| 44511 | April 17 | Birth | 1995 – Bel'ange Epako, Congolese footballer (d. 2013) |
| 44512 | April 17 | Birth | 1996 – Dee Dee Davis, American actress |
| 44513 | April 17 | Birth | 2004 – Solwhit, French-Irish race horse (d. 2014) |
| 44514 | April 17 | Death | 485 – Proclus, Greek mathematician and philosopher (b. 412) |
| 44515 | April 17 | Death | 617 – Donnán of Eigg, Irish priest and saint |
| 44516 | April 17 | Death | 744 – Al-Walid II, Muslim caliph (b. 706) |
| 44517 | April 17 | Death | 818 – Bernard of Italy, Frankish king (b. 797) |
| 44518 | April 17 | Death | 1080 – Harald III of Denmark (b. 1041) |
| 44519 | April 17 | Death | 1331 – Robert de Vere, 6th Earl of Oxford, English noblemen (b. 1257) |
| 44520 | April 17 | Death | 1427 – John IV, Duke of Brabant (b. 1403) |