North Lancashire was a county constituency of the House of Commons of the Parliament of the United Kingdom.

Those in schedule C were to return two members and these included Manchester, Bolton, Blackburn and Oldham in Lancashire.

Those in schedule D were to become single seat boroughs and included Ashton-under-Lyne, Bury, Rochdale, Salford, and Warrington.

The boundary of the two divisions extended approximately from Southport to Wigan, north to Chorley, and then east, passing south of Haslingden, to the Bacup area.

The result of these changes meant the total parliamentary representation for Lancashire in the reformed House of Commons was 26, an increase of 12.

The constituency was abolished by the Redistribution of Seats Act 1885, being divided into five single member divisions of Barrow-in-Furness, Blackpool, Chorley, Lancaster, and North Lonsdale.