List of Famous people born on April 12nd

Julio César "Coyote" Rivera González is a retired Peruvian footballer who played mainly as a winger.

Ib Henning Madsen is a Danish mathematician, a professor of mathematics at the University of Copenhagen. He is known for proving the Mumford conjecture on the cohomology of the stable mapping class group, and for developing topological cyclic homology theory.

Winthrop "Wink" Davenport Jr. is an American former lead volleyball official, former college basketball player, former National team volleyball player. He is best remembered as the most prominent volleyball official in the United States, arising from his frequent service as a volleyball referee officiating the nation's most important matches. He is a holder of U.S.A. Volleyball's 1996 Wilbur H. Peck Referee – Emeritus Award.

John Kay is a German-born Canadian rock singer, songwriter, and guitarist known as the frontman of Steppenwolf.

Sir Alan Ayckbourn is a prolific British playwright and director. He has written and produced as of 2021, more than eighty full-length plays in Scarborough and London and was, between 1972 and 2009, the artistic director of the Stephen Joseph Theatre in Scarborough, where all but four of his plays have received their first performance. More than 40 have subsequently been produced in the West End, at the Royal National Theatre or by the Royal Shakespeare Company since his first hit Relatively Speaking opened at the Duke of York's Theatre in 1969.