List of Famous people born on April 21st

Deng Linlin, is a retired Chinese gymnast. She was a member of the Chinese team that won the team gold medal at the 2008 Olympic Games in Beijing, People's Republic of China, and is a three-time World Cup gold medalist. She is the 2009 World and 2012 Olympic champion on balance beam.

Randall Thompson was an American composer, particularly noted for his choral works.

Antonino Cuffaro was an Italian politician.

Isaac Jacob Schoenberg was a Romanian-American mathematician, known for his discovery of splines.

Mokdad Sifi is an Algerian politician. Sifi was Head of Government of Algeria from 11 April 1994 to 31 December 1995. He was a Member of Parliament and once considered running for the Presidency. However, Sifi withdrew in April 1999 along with six of the seven other candidates, allowing the only remaining candidate, Abdelaziz Bouteflika, to become president. Siffi was said to have favored a market-oriented economy and no amnesty for the Islamic Salvation Front.

Takao Koyama is a Japanese screenwriter and novelist focusing on anime productions. He was active as 小山 高男 until 1987.

David Michael O'Connell is a member of the Congregation of the Mission, commonly called the Vincentian Fathers, and a past President of the Catholic University of America in Washington, DC. He is currently the bishop of the Diocese of Trenton in the United States.

Lin Guipu is a Chinese badminton player.