Warners Bay is a suburb of the City of Lake Macquarie in New South Wales, Australia, and is located 15 kilometres (9 mi) from Newcastle's central business district on the eastern side of Lake Macquarie. It was named after Jonathan Warner, who settled the area. The population of Warners Bay was 7,457 as at the 2011 census, with in excess of 615 businesses operating in the area. Warners Bay High School is the local high school.