Diamantina Cocktail is the third studio album by the Australian rock group Little River Band, released in April 1977.

2 on the Australian Kent Music Report Albums Chart and reaching No.

The album was certified Gold in the US by the RIAA in January 1978 for over 500,000 copies sold.

The titled refers to a drink invented in the area of the Diamantina River in Queensland, Australia.

[2] Cash Box said: "Thought the singers in this Aussie band justifiably deserve the spotlight aimed their way, the instrumental setting creates the perfect backdrop for the self-written selection.