| 44941 | April 18 | Birth | 1989 – Jessica Jung, American-South Korean singer, dancer, and actress (Girls' Generation) |
| 44942 | April 18 | Birth | 1989 – Alia Shawkat, American actress |
| 44943 | April 18 | Birth | 1989 – Chaiwat Thongsaeng, Thai model and actor |
| 44944 | April 18 | Birth | 1990 – Cigar, American race horse (d. 2014) |
| 44945 | April 18 | Birth | 1990 – Henderson Álvarez, Venezuelan baseball player |
| 44946 | April 18 | Birth | 1990 – Jake Howells, English footballer |
| 44947 | April 18 | Birth | 1990 – Britt Robertson, American actress |
| 44948 | April 18 | Birth | 1990 – Wojciech Szczęsny, Polish footballer |
| 44949 | April 18 | Birth | 1990 – Junior Torunarigha, Nigerian footballer |
| 44950 | April 18 | Birth | 1990 – Inna Zlidnis, Estonian footballer |
| 44951 | April 18 | Birth | 1992 – Chloe Bennet, American actress and singer |
| 44952 | April 18 | Birth | 1992 – Misa Eguchi, Japanese tennis player |
| 44953 | April 18 | Birth | 1993 – Matt Salisbury, English cricketer |
| 44954 | April 18 | Birth | 1993 – Nathan Sykes, English singer-songwriter (The Wanted) |
| 44955 | April 18 | Birth | 1994 – Moisés Arias, American actor |
| 44956 | April 18 | Birth | 1995 – Divock Origi, Belgian footballer |
| 44957 | April 18 | Birth | 1996 – Ioana Ducu, Romanian tennis player |
| 44958 | April 18 | Birth | 1999 – Michael Andrew, American swimmer |
| 44959 | April 18 | Death | 1161 – Theobald of Bec, French-English archbishop (b. 1090) |
| 44960 | April 18 | Death | 1552 – John Leland, English poet and historian (b. 1502) |
| 44961 | April 18 | Death | 1556 – Luigi Alamanni, Italian poet and politician (b. 1495) |
| 44962 | April 18 | Death | 1567 – Wilhelm von Grumbach, German adventurer (b. 1503) |
| 44963 | April 18 | Death | 1587 – John Foxe, English historian and author (b. 1516) |
| 44964 | April 18 | Death | 1636 – Julius Caesar, English judge and politician (b. 1557) |
| 44965 | April 18 | Death | 1650 – Simonds d'Ewes, English lawyer and politician (b. 1602) |
| 44966 | April 18 | Death | 1674 – John Graunt, English demographer and statistician (b. 1620) |
| 44967 | April 18 | Death | 1689 – George Jeffreys, 1st Baron Jeffreys, Welsh judge and politician, Lord Chancellor of Great Britain (b. 1648) |
| 44968 | April 18 | Death | 1732 – Louis Feuillée, French astronomer, geographer, and botanist (b. 1660) |
| 44969 | April 18 | Death | 1763 – Marie-Josephte Corriveau, Canadian murderer (b. 1733) |
| 44970 | April 18 | Death | 1794 – Charles Pratt, 1st Earl Camden, English lawyer, judge, and politician, Lord Chancellor of Great Britain (b. 1714) |