List of Famous people born on December 20th

John III was King of Sweden from 1569 until his death. He was the son of King Gustav I of Sweden and his second wife Margaret Leijonhufvud. He was also, quite autonomously, the ruler of Finland, as Duke John from 1556 to 1563. In 1581 he assumed also the title Grand Prince of Finland. He attained the Swedish throne after a rebellion against his half-brother Eric XIV. He is mainly remembered for his attempts to close the gap between the newly established Lutheran Church of Sweden and the Catholic church, as well as his conflict with, and murder of, his brother.

Joey Silvera is an American director and former pornographic actor.

Mustapha Bakkoury is a Moroccan businessman, engineer and politician. He is chairman of the board of the Moroccan Solar Energy Agency and the council president of the Casablanca-Settat region. He was born in Mohammedia, but is a native of Taounate.

Francis Chouat is a French historian and politician of La République En Marche! (LREM) who has been serving as a member of the National Assembly since winning a by-election in 2018, representing Essonne's 1st constituency.

Fusao Sekiguchi (関口房朗) is a businessman and Thoroughbred horse racing enthusiast. He is the Chairman of the Board and majority shareholder of Venture Safe Net, Inc of Tokyo.

Nicole de Boer is a Canadian actress. She is best known for starring in the cult film Cube as Joan Leaven, playing Ezri Dax on the final season of Star Trek: Deep Space Nine (1998–1999), and as Sarah Bannerman on the series The Dead Zone (2002–2007). Since 2016 she has had a recurring role as Becca Dorsay, ex-wife of one of the series leads on the Canadian-produced crime drama Private Eyes.

Ferdinand Édouard Buisson was a French academic, educational bureaucrat, pacifist and Radical-Socialist politician. He presided over the League of Education from 1902 to 1906 and the Human Rights League (LDH) from 1914 to 1926. In 1927, the Nobel Peace Prize was awarded to him jointly with Ludwig Quidde. Philosopher and educator, he was Director of Primary Education. He was the author of a thesis on Sebastian Castellio, in whom he saw a "liberal Protestant" in his image. Ferdinand Buisson was the president of the National Association of Freethinkers. In 1905, he chaired the parliamentary committee to implement the separation of church and state. Famous for his fight for secular education through the League of Education, he coined the term laïcité ("secularism").

Jean-Pierre Kalfon, known professionally as Hector was a French singer.

Mariano Vázquez is an Argentine professional footballer who plays as a midfielder for the club FBC Melgar.

Alexandre Landry is a Canadian film, television and stage actor. He is best known for his role in the 2013 film Gabrielle, for which he garnered a Canadian Screen Award nomination as Best Supporting Actor at the 2nd Canadian Screen Awards.