The ocean that lies in between the continents Africa and Australia is the Indian Ocean.
You're thinking of the South Atlantic Ocean.
Africa
The Indian ocean lies between Africa and Australia.
The Indian ocean lies between Africa and Australia.
The ocean that lies between Australia and Africa is called the Indian ocean, which itself is a part of the Pacific Ocean
Africa lies across an ocean (the Atlantic) to the south east of the US.
East
Most of Africa is situated between the Tropics of Cancer and Capricorn
the Atlantic Ocean
The Indian ocean lies between Africa and Australia.
The red sea lies between Asia and Africa.