Erina is a suburb of the Central Coast region of New South Wales, Australia between Gosford and the Pacific Ocean at Terrigal. It is part of the Central Coast Council local government area.
Erina is the commercial hub of the City of Gosford. It contains one of the largest shopping centres in Australia, Erina Fair, which contains over 330 shops and stores. There are many other major commercial businesses located throughout the suburb predominantly on The Entrance Road, Karalta Road and Barralong Road.
The suburb is home to the Erina Eagles rugby league team, who play in the Central Coast Premiership.