England, Manchester, Parish Registers, 1603-1910 has 1,741,621 records for the area around Manchester, Lancashire.
The Lancashire parishes are listed here, to which are added Staleybridge, Ashton-under-Lyne in Cheshire and the Yorkshire parishes of Dobcross, Holy Trinity; Lydgate, St Anne; Saddleworth, St Chad; Saddleworth, St Thomas.
These parish registers at FamilySearch. many with linked images, contain births, christenings, burials, marriages, and mixed church records.
Ancestry and Findmypast also have Manchester area records.