1990 Knowsley South by-election

1990 Knowsley South by-election

← 1987 27 September 1990 1992 →
Constituency of Knowsley South
Turnout	33.4% (40.7%)
First party Second party Third party   Con LD Candidate Edward O'Hara Leslie Byrom Catherin Hancox Party Labour Conservative Liberal Democrats Popular vote 14,581 3,241 1,809 Percentage 68.8% 15.2% 8.5% Swing 4.3% 6.4% 5.4%
MP before election Sean Hughes Labour Subsequent MP Edward O'Hara Labour

The 1990 Knowsley South by-election was a by-election held on 27 September 1990 for the British House of Commons constituency of Knowsley South in Merseyside.

The by-election was caused by the death of the constituency's Labour Party Member of Parliament (MP) Sean Hughes on 25 June.

The result was a Labour hold, with Edward O'Hara winning a majority of over 11,000 votes.