Police are hunting a man over a central Queenstown assault which left the victim shaken.

The alleged attack happened at a premises on Ballarat Street around 1.50am on Monday, April 27.

The male victim was not injured but "understandably shaken by the incident".

Police have released a photo of a man they believe may be able to help their inquiries.

Police can be contacted through 105 – either online or over the phone – and reference file number 260428/6439.