Akuna Bay is an urban place[1] in Sydney, Australia.

Akuna Bay is located 38 kilometres (24 mi) north of the Sydney central business district, in the local government area of Northern Beaches Council.

It can be accessed by a marina on the bay or by Liberator General San Martin Drive.

Akuna was thought to be an Aboriginal word meaning to follow.

[1] It actually is a mangled version of the Dieri word ngaka-rna meaning "to flow" from South Australia.