List of Famous people who are 51

Glen Hansard is an Irish songwriter, actor, vocalist and guitarist for the Irish group The Frames, and one half of folk rock duo The Swell Season. He is known for his acting, having appeared in the BAFTA-winning film The Commitments, as well as starring in the film Once, which earned him a number of major awards, including the Academy Award for Best Original Song for "Falling Slowly", with co-writer and co-star Markéta Irglová.

Harald Nævdal, known by his stage names Demonaz Doom Occulta and Demonaz, is a Norwegian musician best known as the founding guitarist and chief lyricist for the black metal band Immortal.

Julie St. Claire, is an American actress, director and producer.

Monica Staggs is an American stuntwoman and actress. Her acting credits include roles in The Settlement (1999), Sorority Boys (2002), Quentin Tarantino's Death Proof (2007), as Lanna Frank, Hesher (2010), 2009 web series Angel of Death, and Once Upon a Time in Hollywood (2019), as Connie.

Cathy DeBuono is an American actress and practicing psychotherapist. DeBuono was born on March 20, 1970, in Yonkers, New York, and raised in Bronxville.

Catarina de Albuquerque is a Portuguese lawyer and human rights activist who served as the first United Nations Special Rapporteur on the right to safe drinking water and sanitation (2008–2014). After becoming Executive Chair of Sanitation and Water for All (SWA) in 2015, in September 2018 she was appointed SWA's Chief Executive Officer.