Mortdale is a suburb in southern Sydney, in the
state of New South Wales, Australia. Mortdale is
located 20 kilometres south of the Sydney central
business district and is part of the St
George area. Mortdale lies across the local
government area of Georges River Council.
Mortdale extends south to Lime Kiln Bay, on the
Georges River. Mortdale Heights is a locality in the
western corner of the suburb.

Mortdale consists mainly of residential dwellings
with some commercial and
industrial developments in the north-west corner.
The main shopping centre is located on Morts
Road and Pitt Street, near Mortdale railway station.
Commercial and industrial developments are
located along Boundary Road.