Athanas sydneyensis is a species of small alpheid shrimp.

Athanas sydneyensis belongs to the genus Athanas of the snapping shrimp family Alpheidae.

It was first described in 2007 by Arthur Anker and Shane Ahyong.

[1][3] It has been found only midstream of the Hawkesbury River in the muddy-sand substrate at a depth of 10 metres.

This Caridea-related article is a stub.