Birr may refer to:
Places Birr, County Offaly, a town in Ireland Birr Castle, a castle in Birr, Ireland King's County Birr, a 1885–1918 UK parliamentary constituency in what is now County Offaly Birr, Ontario, a community in Middlesex Centre, Ontario, Canada Birr, Switzerland, a municipality in Aargau, Switzerland
People Jim Birr (1916–2006), American professional basketball player Kevin Birr (born 1969), American curler Todd Birr (born 1968), American curler
Other Ethiopian birr, the currency of Ethiopia Birr RFC, a rugby club in the Irish town Synod of Birr, in the Irish town, in 697 Birr Aerodrome, near the Irish town
See also Bier (disambiguation) Burr (disambiguation)