Rachel Anne Squire was a British Labour politician who served as Member of Parliament (MP) for Dunfermline West in Scotland from 1992 general election to 2005, and then for Dunfermline and West Fife from 2005 until her death after a long series of illnesses.

The Dunfermline and West Fife by-election was held on 9 February 2006, following the death of the sitting Labour MP Rachel Squire, on 6 January. The by-election was the first seat to change hands in the 2005 Parliament, when Willie Rennie won the seat for the Liberal Democrats, gaining it from Labour by 1,800 votes. The BBC reported a swing from Labour to the Liberal Democrats of 16.24%.