List of Famous people born on October 21st

Jan Hendrik Bruinier is a German mathematician, whose work focuses on number theory.

Allen Henry Vigneron is an American prelate of the Roman Catholic Church. He is the current Archbishop of Detroit and Ecclesiastical Superior of the Cayman Islands, having previously served as Bishop of Oakland from 2003 to 2009.

Yoram Globus is an Israeli–American film producer, cinema owner, and distributor. He has been involved in over 300 full-length motion pictures and he is most known for his association with The Cannon Group, Inc., an American film production company, which he co-owned with his cousin Menahem Golan.

Fred Hersch is an American jazz pianist, educator and HIV/AIDS activist. He was the first person to play weeklong engagements as a solo pianist at the Village Vanguard in New York City. He has recorded more than 70 of his jazz compositions. Hersch has been nominated for several Grammy Awards, and, as of December 2014, had been on the Jazz Studies faculty of the New England Conservatory since 1980.

Mehdi Charef is a French film director and screenwriter of Algerian descent. He has worked on eleven films between 1985 and 2007. His film Le thé au harem d'Archimède was screened in the Un Certain Regard section at the 1985 Cannes Film Festival. Seven years later, his film Au pays des Juliets competed for the Palme d'Or at the 1992 festival.

Hal Duncan is a Scottish science fiction and fantasy writer.

Ernesto Civardi was an Italian Cardinal of the Roman Catholic Church who served as Secretary of the Sacred Congregation for Bishops from 1967 to 1979, and was elevated to the cardinalate in 1979.