List of Famous people born in County Westmeath, Ireland

Niall James Horan is an Irish singer and songwriter. He rose to prominence as a member of the boy band One Direction, formed in 2010 on the British singing competition The X Factor. Following the band's hiatus in 2016, Horan signed a recording deal as a solo artist with Capitol Records.

Michael Kevin O'Leary is an Irish businessman who is the CEO of Ryanair. With a net worth of around €848.6 million as of April 2018, he is one of Ireland's wealthiest businessmen.

Paul Nicholas Gogarty is an Irish Independent politician who has served as a South Dublin County Councillor for Lucan since May 2014. He previously served as a Teachta Dála (TD) for the Dublin Mid-West constituency from 2002 to 2011.

Josephine Hart, Lady Saatchi, was an Irish writer, theatrical producer and television presenter who lived in London. Lady Saatchi wrote the novel Damage, which was the basis for the 1992 film of the same name, directed by Louis Malle and starring Jeremy Irons, Juliette Binoche and Rupert Graves.

William Pollard-Urquhart, was a 19th-century writer specialising in economic and policy questions of his day; he served as high sheriff of County Westmeath, and sat as Member of Parliament for the county.

Daniel Cassidy is a former Irish Fianna Fáil politician who served as Leader of Seanad Éireann from 2007 to 2011. He served as a Senator for the Labour Panel from 1982 to 2002 and 2007 to 2011 and a Teachta Dála (TD) for the Westmeath constituency from 2002 to 2007.

Eugene Casserly was an Irish-American journalist and lawyer. The son of Patrick S. Casserly, he served in the United States Senate from California.

James Geoghegan was an Irish Fianna Fáil politician, barrister and judge who served as a Judge of the Supreme Court from 1936 to 1950, Attorney General of Ireland from November 1936 to December 1936 and Minister for Justice from 1932 to 1933. He served as a Teachta Dála (TD) for the Longford–Westmeath constituency from 1930 to 1936.