Bardwell Valley is a suburb in southern Sydney, in the state of New South Wales, Australia.

Some beautiful sandstone cottages from the early 20th century still stand in East Street and The Glen Road.

Prior to European settlement, Bardwell Valley was a significant part of the lands of the Cadigal people.

Thomas Hill Bardwell was a wealthy pastoralist from southern New South Wales who bought the land in December 1853.

The most common responses for religious affiliation were No Religion 23.0%, Catholic 20.9%, Islam 18.7% and Eastern Orthodox 15.5%.