MISSING: Christopher Rosenberg has been missing since Friday.

Police are appealing for sightings of an Auckland man who has not been seen since Friday.

Waitakere police say 21-year-old Christopher Rosenberg was last seen in the Remuera area at 11pm on Friday, and has been reported missing by his family.

He is described as European, clean shaven and about 1.75m tall.

He is of thin build, with short, dark brown hair, has a small mole on his lower right leg and a five centimetre scar on the inside of his left forearm.

He was wearing a long-sleeve grey shirt, mustard-coloured dress pants and black Chuck Taylor shoes when he was last seen.

Anyone with information is asked to contact Waitakere Police on 09 839 0600