List of Famous people named Dermot

Dermot Mulroney is an American actor, voice artist, and musician. He is best known for his roles in romantic comedy, western, and drama films. Appearing on screen since the mid-1980s, he is known for his work in films such as Young Guns (1988), Staying Together (1989), Where the Day Takes You (1992), Point of No Return (1993), Angels in the Outfield (1994), My Best Friend's Wedding (1997), About Schmidt (2002), The Wedding Date (2005), August: Osage County (2013), Insidious: Chapter 3 (2015), and the HBO films The Last Outlaw (1993) and Long Gone (1987). Mulroney played the main antagonist Francis Gibson in NBC's Crisis, Dr. Walter Wallace in Pure Genius, Sean Pierce in Showtime's Shameless and Bobby Sheridan in USA's The Purge.

Sean Dermot Fintan O'Leary Jr. is an English television presenter and radio DJ who currently works for ITV and BBC Radio 2. His radio career began when he worked as a disc jockey at Essex Radio, but he is best known for being the presenter of The X Factor on ITV, a position he has held every year since 2007 with the exception of 2015, during which he stepped down to pursue other ventures.

Dermot Joseph Kennedy is an Irish singer-songwriter and musician. He is best known for his 2019 single "Outnumbered" and his 2020 single "Giants". He is signed to Interscope Records in the US, and Island Records for the rest of the world. His debut major-label studio album, Without Fear, was released on 4 October 2019.

Dermot Gallagher is a retired Irish association football referee, who lives in Banbury, Oxfordshire. He refereed in the Premier League of English football until May 2007.

Dermot Francis Shea is a former American police officer and administrator who was the 44th New York City Police Commissioner. He assumed the position on December 1, 2019, and was sworn in by Mayor Bill de Blasio in a public ceremony on December 2.

Dermot Crowley is an Irish stage, film and television actor.