List of Famous people born in Leinster, Ireland

Conor Anthony McGregor is an Irish professional mixed martial artist and boxer. He is a former Ultimate Fighting Championship (UFC) featherweight and lightweight champion. As of 25 January 2021, he is ranked #15 in the UFC men's pound-for-pound rankings and as of 24 December 2020, he is #6 in the UFC lightweight rankings.

Pierce Brosnan is an Irish actor, film producer, and environmental activist. He became known as the fifth actor to play secret agent James Bond in the Bond film series, starring in four films from 1995 to 2002 and portraying the character in multiple video games.

Robert Michael Sheehan is an Irish actor. He is best known for television roles such as Nathan Young in Misfits, Darren Treacy in Love/Hate, and Klaus Hargreeves in The Umbrella Academy, as well as film roles such as Tom Natsworthy in Mortal Engines and Simon Lewis in The Mortal Instruments: City of Bones.

Sinéad Marie Bernadette O'Connor is an Irish singer-songwriter who rose to fame in the late 1980s with her debut album The Lion and the Cobra. O'Connor achieved worldwide success in 1990 with a new arrangement of Prince's song "Nothing Compares 2 U."

Stuart Townsend is an Irish actor. His most notable portrayals are of the characters Lestat de Lioncourt in the 2002 film adaptation of Anne Rice's Queen of the Damned, and Dorian Gray in the 2003 film adaptation of Alan Moore's The League of Extraordinary Gentlemen.

Aisling Clíodhnadh O'Sullivan, known professionally as Aisling Bea, is an Irish comedian, actress, and screenwriter.

Robert Frederick Zenon Geldof, is an Irish singer-songwriter, author, political activist, and occasional actor. He rose to prominence as the lead singer of the Irish rock band the Boomtown Rats in the late 1970s, who achieved popularity at the time of the punk rock movement. The band had UK number one hits with his compositions "Rat Trap" and "I Don't Like Mondays". Geldof starred as "Pink" in Pink Floyd's 1982 film Pink Floyd – The Wall. As a fundraiser, Geldof organised the charity supergroup Band Aid and the concerts Live Aid and Live 8, and co-wrote "Do They Know It's Christmas?", one of the best-selling singles of all time.

Charles Bird is an Irish journalist and broadcaster. He was Chief News Correspondent with RTÉ News and Current Affairs until January 2009. He took up the role of Washington Correspondent, but prematurely returned to his earlier post in Ireland in June 2010. He retired from RTÉ in August 2012.

Sir Michael John Gambon is an Irish-English actor. Having trained under Laurence Olivier, he started his career on stage at the Royal National Theatre, and went on to receive a Tony Award nomination for Best Actor in a Play for his work in David Hare's Skylight on Broadway.

Shane Lowry is an Irish professional golfer who plays on the European Tour and the PGA Tour. His notable achievements include winning the 2019 Open Championship, the Irish Open as an amateur in 2009, and the 2015 WGC-Bridgestone Invitational.