Double Bay is a harbourside eastern suburb of Sydney, in the state of New South Wales, Australia. Double Bay is located 4 kilometres east of the Sydney central business district and is the administrative centre of the local government area of the Municipality of Woollahra.
Double Bay takes its name from the bay situated on Sydney Harbour. It refers to the two geographical formations between Point Piper and Darling Point, which are interrupted by a miniature point in between. The eastern part is also known as Blackburn Cove. Double Bay is an affluent residential suburb, hence its common nickname "Double Pay".