South West Lancashire (UK Parliament constituency)

South West Lancashire
Former County constituency for the House of Commons
County	Lancashire
1868–1885
Number of members	Two
Replaced by	Bootle, Ince, Leigh, Newton, Ormskirk, St Helens, Southport and Widnes.
Created from	South Lancashire

South West Lancashire was a county constituency of the House of Commons of the Parliament of the United Kingdom. It was represented by two Members of Parliament. The constituency was created by the Reform act of 1867 by the splitting of the South Lancashire constituency into new South-East and South-West divisions.

The constituency was abolished by the Redistribution of Seats Act 1885, being divided into eight single member divisions of Bootle, Ince, Leigh, Newton, Ormskirk, St Helens, Southport and Widnes.

This constituency comprised the Lancashire hundred of West Derby except for the boroughs of Liverpool, Warrington and Wigan.