William Anthony Kirby (born 2 June 1981) is an English cricketer. Kirby is a right-handed batsman who bowls right-arm medium pace. He was born in Hull, Yorkshire.
Kirby represented the Nottinghamshire Cricket Board in a single List A match against the Gloucestershire Cricket Board in the 1st round of the 2000 NatWest Trophy. In his only List A match, he scored 3 runs.
In 2002, he played 2 first-class matches for Durham UCCE against Durham and Nottinghamshire. In those 2 matches, he scored 78 runs at a batting average of 26.00, with a high score of 37, while in the field he took 2 catches.
In 2009, he joined Lincolnshire, making his debut for the county in the Minor Counties Championship against Norfolk. From 2009 to present, he has represented the county in 7 Championship matches. Is debut for Lincolnshire in the MCCA Knockout Trophy came against Norfolk in 2009, and to present he has played 2 further Trophy matches for the county.