Famous Persons from Birr, Leinster, Ireland
- Michael Milne - Born on February 5, 1999 - Rugby union player
- Jack Regan - Born on May 9, 1997 - Rugby union player
- Lewis Melican - Born on November 4, 1996 - Australian rules football player
- Peter Dooley - Born on August 4, 1994 - Rugby union player
- Shane Delahunt - Born on February 2, 1994 - Rugby union player
- Seán Ryan - Born on November 28, 1986 - Hurler, and Gaelic football player
- Stephen Grant - Born on April 14, 1977 - Golfer, and Association football player
- Simon Whelehan - Born on July 27, 1976 - Hurler
- Mundy - Born on May 19, 1975 - Singer-songwriter, and Singer
- Barry Glendenning - Born on March 12, 1973 - Singer-songwriter, and Singer
- Johnny Pilkington - Born on July 1, 1970 - Hurler - GAA GPA Hurling All Star
- Joe Errity - Born on November 3, 1969 - Hurler
- Brian Hennessy - Born on August 29, 1969 - Hurler
- Pauline Curley - Born on March 10, 1969 - Marathon runner
- Gary Cahill - Born on April 23, 1968 - Hurler
- Simon Ramsay - Born on March 7, 1955 - Politician
- Olivia Mitchell - Born on July 31, 1947 - Politician
- Theodor Baums - Born on April 29, 1947 - University teacher - Officer's Cross of the Order of Merit of the Federal Republic of Germany
- Des Keogh - Born on March 25, 1935 - Music journalist, and Author
- Maurade Glennon - Born on January 5, 1926 - Writer (died: January 1, 2017)
- Bernadette O'Farrell - Born on January 30, 1924 - Film actor, and Actor (died: September 26, 1999)
- John Kerans - Born on June 30, 1915 - Politician (died: September 12, 1985)
- Paddy Robbins - Born on November 18, 1914 - Association football player (died: January 1, 1986)
- Fay Taylour - Born on April 5, 1904 - Speedway rider (died: August 2, 1983)
- John Francis Kavanagh - Born on September 24, 1903 - Sculptor, and Painter (died: June 18, 1984)