Blackpool South is a constituency[n 1] in Lancashire, England, which has been represented by Chris Webb of the Labour Party since a 2024 by-election.

1983–1997: The Borough of Blackpool wards of Alexandra, Clifton, Foxhall, Hawes Side, Highfield, Marton, Squires Gate, Stanley, Tyldesley, Victoria, and Waterloo.

1997–2010: The Borough of Blackpool wards of Alexandra, Brunswick, Clifton, Foxhall, Hawes Side, Highfield, Layton, Marton, Park, Squires Gate, Stanley, Talbot, Tyldesley, Victoria, and Waterloo.

2010–2024: The Borough of Blackpool wards of Bloomfield, Brunswick, Clifton, Hawes Side, Highfield, Marton, Squires Gate, Stanley, Talbot, Tyldesley, Victoria, and Waterloo.

2024–present: The Borough of Blackpool wards of Bloomfield; Brunswick; Claremont; Clifton; Hawes Side; Highfield; Layton; Marton; Park; Squires Gate; Stanley; Talbot; Tyldesley; Victoria; Warbreck; Waterloo.