Lancashire
Constituencies
| Constituency |
| Accrington (1885 - 1983) |
| Ashton-under-Lyne (1832) |
| Barrow-in-Furness (1885 - 1983) |
| Blackburn (1955) |
| Blackburn (1832 - 1950) |
| Blackburn East (1950 - 1955) |
| Blackburn West (1950 - 1955) |
| Blackpool (1885 - 1945) |
| Blackpool North (1945 - 1997) |
| Blackpool South (1945) |
| Bolton (1832 - 1950) |
| Bolton East (1950 - 1983) |
| Bolton West (1950) |
| Bootle (1885) |
| Burnley (1868) |
| Bury (1832 - 1950) |
| Bury and Radcliffe (1950 - 1983) |
| Chorley (1885) |
| Clitheroe (1832 - 1983) |
| Crosby (1950 - 2010) |
| Darwen (1885 - 1983) |
| Droylsden (1950 - 1955) |
| Eccles (1885 - 2010) |
| Farnworth (1918 - 1983) |
| Fylde (1918 - 1950) |
| Gorton (1885 - 1918) |
| Heywood (1885 - 1918) |
| Heywood and Radcliffe (1918 - 1950) |
| Heywood and Royton (1950 - 1983) |
| Huyton (1950 - 1983) |
| Ince (1885 - 1983) |
| Lancashire North Eastern (1868 - 1885) |
| Lancashire Northern (1832 - 1885) |
| Lancashire South Eastern (1868 - 1885) |
| Lancashire Southern (1832 - 1868) |
| Lancashire South Western (1868 - 1885) |
| Lancaster (1885 - 1997) |
| Lancaster (1832 - 1866) |
| Leigh (1885 - 2024) |
| Liverpool (1832 - 1885) |
| Liverpool, Abercromby (1885 - 1918) |
| Liverpool, East Toxteth (1885 - 1950) |
| Liverpool, Edge Hill (1918 - 1983) |
| Liverpool, Everton (1885 - 1950) |
| Liverpool, Exchange (1885 - 1974) |
| Liverpool, Fairfield (1918 - 1950) |
| Liverpool, Garston (1950 - 2010) |
| Liverpool, Kirkdale (1885 - 1983) |
| Liverpool, Scotland (1885 - 1974) |
| Liverpool, Toxteth (1950 - 1983) |
| Liverpool, Walton (1885) |
| Liverpool Wavertree (1918 - 1983) |
| Liverpool, West Derby (1885) |
| Liverpool, West Toxteth (1885 - 1950) |
| Lonsdale (1918 - 1950) |
| Manchester (1832 - 1885) |
| Manchester, Ardwick (1918 - 1983) |
| Manchester, Blackley (1918 - 2010) |
| Manchester, Cheetham (1950 - 1974) |
| Manchester, Clayton (1918 - 1955) |
| Manchester East (1885 - 1918) |
| Manchester, Exchange (1918 - 1974) |
| Manchester, Gorton (1918 - 2024) |
| Manchester, Hulme (1918 - 1950) |
| Manchester, Moss Side (1918 - 1983) |
| Manchester North (1885 - 1918) |
| Manchester North East (1885 - 1918) |
| Manchester North West (1885 - 1918) |
| Manchester, Openshaw (1955 - 1983) |
| Manchester, Platting (1918 - 1950) |
| Manchester, Rusholme (1918 - 1950) |
| Manchester South (1885 - 1950) |
| Manchester South West (1885 - 1918) |
| Manchester, Withington (1918) |
| Manchester, Wythenshawe (1950 - 1997) |
| Middleton (1885 - 1918) |
| Middleton and Prestwich (1918 - 1983) |
| Morecambe and Lonsdale (1950 - 1983) |
| Mossley (1918 - 1950) |
| Nelson and Colne (1918 - 1983) |
| Newton (1885 - 1983) |
| North Fylde (1950 - 1983) |
| North Lonsdale (1885 - 1918) |
| Oldham (1832 - 1950) |
| Oldham East (1950 - 1997) |
| Oldham West (1950 - 1997) |
| Ormskirk (1885 - 1983) |
| Preston (1983) |
| Preston (1832 - 1950) |
| Preston North (1950 - 1983) |
| Preston South (1950 - 1983) |
| Prestwich (1885 - 1918) |
| Radcliffe-cum-Farnworth (1885 - 1918) |
| Rochdale (1832) |
| Rossendale (1885 - 1983) |
| Royton (1918 - 1950) |
| Salford (1832 - 1885) |
| Salford East (1950 - 1997) |
| Salford North (1885 - 1950) |
| Salford South (1885 - 1950) |
| Salford West (1885 - 1983) |
| South Fylde (1950 - 1983) |
| Southport (1885) |
| St Helens (1885 - 1983) |
| Stretford (1885 - 1997) |
| Warrington (1832 - 1983) |
| Waterloo (1918 - 1950) |
| Westhoughton (1885 - 1983) |
| Widnes (1885 - 1983) |
| Wigan (1832) |