The man sustained an injury to his face when he was attacked by a group of men at the on 22 March last after he had walked from a nightclub.
A PSNI spokesperson said the victim “perceives this to be a hate crime.”
The incident happened at the junction of William Street and Chamberlain Street in Derry around 1.30 am
The spokesperson asked anyone with to contact police at Strand Road on the non-emergency number, 101.
Alternatively, callers who do not wish to disclose their details could call the Crimestoppers charity anonymously on 0800 555 111.