Woonona is a northern suburb of Wollongong, New South Wales, Australia, on the northern area of the Illawarra coastal plain. It is served by Woonona Station on the South Coast (Illawarra) Line, and by the Princes Highway.
The suburb has a strip of commerce along the highway and several historic buildings. It is mostly light-density residential, though some new two-storey buildings have been made. The local beach is known for surfing conditions, and surfers frequent it during high wave times. A good swell will bring in many locals. There are a variety of breaks, including the northern side of the rocks, the southern side and the famous "Dorrigo Ave" break.