The 1923 Belfast West by-election was held on 2 May 1923, following the assassination of William Twaddell, the sitting MP.
It was won by Philip James Woods standing as the Fighting Colonel, an independent Unionist separate from the official Unionist party.
Woods campaigned on a platform of ultra-loyalism and working-class grievances.
Woods stood in 1925 in both Belfast West and Belfast South, winning both seats, but opting to sit for Belfast West.