| 30421 | March 18 | Birth | 1980 – Sophia Myles, English actress |
| 30422 | March 18 | Birth | 1980 – Alexei Yagudin, Russian figure skater |
| 30423 | March 18 | Birth | 1980 – Natalia Poklonskaya, Ukrainian-Crimean lawyer and politician |
| 30424 | March 18 | Birth | 1981 – Tora Berger, Norwegian biathlete |
| 30425 | March 18 | Birth | 1981 – Fabian Cancellara, Swiss cyclist |
| 30426 | March 18 | Birth | 1981 – Leslie Djhone, French sprinter |
| 30427 | March 18 | Birth | 1981 – Jang Na-ra, South Korean singer and actress |
| 30428 | March 18 | Birth | 1981 – Kasib Powell, American basketball player |
| 30429 | March 18 | Birth | 1981 – Tom Starke, German footballer |
| 30430 | March 18 | Birth | 1981 – Doug Warren, American soccer player |
| 30431 | March 18 | Birth | 1981 – Lovro Zovko, Croatian tennis player |
| 30432 | March 18 | Birth | 1982 – Chad Cordero, American baseball player |
| 30433 | March 18 | Birth | 1982 – Timo Glock, German race car driver |
| 30434 | March 18 | Birth | 1982 – Mantorras, Angolan footballer |
| 30435 | March 18 | Birth | 1982 – Adam Pally, American actor, director, producer, and screenwriter |
| 30436 | March 18 | Birth | 1982 – Rei Yoshii, Japanese actress |
| 30437 | March 18 | Birth | 1983 – Ethan Carter III, American wrestler |
| 30438 | March 18 | Birth | 1983 – Stéphanie Cohen-Aloro, French tennis player |
| 30439 | March 18 | Birth | 1983 – Andy Sonnanstine, American baseball player |
| 30440 | March 18 | Birth | 1983 – Tomasz Stolpa, Polish footballer |
| 30441 | March 18 | Birth | 1984 – Simone Padoin, Italian footballer |
| 30442 | March 18 | Birth | 1984 – Rajeev Ram, American tennis player |
| 30443 | March 18 | Birth | 1984 – Gary Roberts, English footballer |
| 30444 | March 18 | Birth | 1984 – Vonzell Solomon, American singer and actress |
| 30445 | March 18 | Birth | 1985 – Gennaro Esposito, Italian footballer |
| 30446 | March 18 | Birth | 1985 – Bia Figueiredo, Brazilian race car driver |
| 30447 | March 18 | Birth | 1985 – Marvin Humes, English singer and actor (JLS and VS) |
| 30448 | March 18 | Birth | 1985 – Vince Lia, Australian footballer |
| 30449 | March 18 | Birth | 1986 – Abdennour Chérif El-Ouazzani, Algerian footballer |
| 30450 | March 18 | Birth | 1986 – Kaloyan Ivanov, Bulgarian basketball player |