Birt is a surname. Notable people with the surname include:
Charlie Birt (born 1942), Canadian politician
Fred Birt (1886–1956), Welsh rugby player
Jill Birt (active 1983–present), keyboardist in Australian band The Triffids
John Birt (footballer) (born 1937)
John Birt, Baron Birt (born 1944), Director-General of the British Broadcasting Corporation 1992–2000
Michael Birt (biochemist) (1932–2001), Australian academician
Michael Birt (lawyer) (born 1948), lawyer and Bailiff of Jersey in the Channel Islands
Peter Birt (c. 1723 – June 1791), businessman from Airmyn, Yorkshire, England
Suzanne Birt (born 1981), curler
Travis Birt (born 1981), cricketer
William Radcliffe Birt (1804–1881), British astronomer
People with Birt as a first name include:
Birt Acres (1854–1918), photographer and film pioneer
