List of Famous people who are 21

Abner Vinícius da Silva Santos, known as Abner Vinícius or simply Abner, is a Brazilian footballer who plays as a left-back for Athletico Paranaense.

Michael London is an American film producer and a partner, with Janice Williams, in Groundswell Productions. He has produced over 20 films including Sideways, The Visitor, Win Win, and Smart People. The film Sideways was nominated for an Academy Award for Best Picture in 2005. On the heels of the Academy nomination, London won "Producer of the Year" in 2006 at the Palm Springs International Film Festival. London will be the executive producer of the upcoming HBO adaptation of the novel A Visit From the Goon Squad. In 2013, Groundswell was scheduled to produce Mona for the studio New Regency, based on the novel of the same name by Swedish author Dan T. Sehlberg. He has a first look TV deal with Fox 21 in 2013.

Michael Katz is an Austrian film producer. He has produced films for cinematic release as well as made-for-television movies and television series. He has worked with Michael Haneke on most of his films, including Amour. He was nominated for the Academy Award for Best Picture for Amour along with Margaret Menegoz, Stefan Arndt and Veit Heiduschka in 2013.