Sir David Anthony Crausby (born 17 June 1946) is a British Labour politician who served as Member of Parliament (MP) for Bolton North East from 1997 to 2019. Born in Bury, Lancashire, Crausby worked as a turner and later became a workplace representative for the Amalgamated Engineering Union. He was a Member of Bury Metropolitan Borough Council from 1979 to 1992, and elected as an MP at the 1997 general election.