Electoral district of Penrith

Penrith New South Wales—Legislative Assembly
Location within Sydney
State	New South Wales
Dates current	1973–present
MP	Stuart Ayres
Party	Liberal Party of Australia
Namesake	Penrith
Electors	54,184 (2015)
Area	75.61 km2 (29.2 sq mi)

Penrith is an electoral district of the Legislative Assembly in the Australian state of New South Wales. It has been represented by Stuart Ayres of the Liberal Party of Australia since the 2010 by-election. It was a safe Labor seat for most of its history before 2010, but Ayres won the 2010 by-election with a swing of 25.7 percent--at the time, the biggest swing against a sitting government in New South Wales history.

Penrith includes the suburbs of Penrith, Emu Heights, Emu Plains, Glenbrook, Jamisontown, Lapstone, Lemongrove, Leonay, South Penrith and parts of Blaxland, Caddens, Cambridge Park, Castlereagh, Cambridge Gardens, Cranebrook, Kingswood and Werrington.