Islington South West was a parliamentary constituency in the Metropolitan Borough of Islington, in North London.
It returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom from 1950 until it was abolished for the February 1974 general election.
The Metropolitan Borough of Islington wards of Barnsbury, Lower Holloway, St Mary, St Peter, and Thornhill.
In 1966, 12.9% of the constituency was born in the New Commonwealth.