Welcome! Check out today's birthdays, recent birthdays, or our birthday stats.

Notables at age 40

2,579 Notable birthdays

Mark Zuckerberg

American internet entrepreneur.

Born May 14th, 1984 (age 40 years) in White Plains.

Kim Jong-un

General secretary of the workers' party of korea and 3rd supreme leader of north korea.

Born January 8th, 1984 (age 40 years) in Pyongyang.

Katy Perry

American singer, songwriter, actress and television personality.

Born October 25th, 1984 (age 40 years) in Santa Barbara.

Aaron Rodgers

American football player (born 1983).

Born December 2nd, 1983 (age 40 years) in Chico.

Elizabeth Holmes

American businessperson; a subject of an sec investigation.

Born February 3rd, 1984 (age 40 years) in Washington, D.C..

Olivia Wilde

American actress, film director and producer.

Born March 10th, 1984 (age 40 years) in New York City.

Prince Harry, Duke of Sussex

Younger son of charles, prince of wales, and diana, princess of wales.

Born September 15th, 1984 (age 40 years) in St. Mary's Hospital.

Khloé Kardashian

American television personality.

Born June 27th, 1984 (age 40 years) in Los Angeles.

Avril Lavigne

Canadian singer (born 1984).

Born September 27th, 1984 (age 40 years) in Belleville. [ref]

Aubrey Plaza

American actress and comedian.

Born June 26th, 1984 (age 40 years) in Wilmington.

birthdays 1 to 10 of 2579

Don't just count your years, make your years count. George Meredith