The Monklands East by-election was held on 30 June 1994, following the death of the Leader of the Labour Party John Smith, Member of Parliament (MP) for Monklands East in Scotland, on 12 May.
Monklands East was considered a safe Labour seat; John Smith had held it since its creation in 1983, and had previously held the predecessor seat of North Lanarkshire, which had been held by Labour since the 1945 general election. In the 1992 general election, Smith had won more than 60% of the vote in the constituency, with most of the remaining votes split fairly evenly between the Scottish National Party and the Conservative Party.
For the by-election, Labour selected Helen Liddell. She was a high-profile candidate, who had been the first female general secretary of the Labour Party at only 26, and had been an aide to disgraced media tycoon Robert Maxwell until his death.
The Scottish National Party (SNP) selected Kay Ullrich, who had previously contested Cunninghame South and Motherwell South.