Billy Connolly has been spotted dining out in a popular Chinese restaurant in the city centre.

The comedian stopped by over the weekend and posed with staff at Amber Regent Restaurant on the city's West Regent Street.

And the family-owned restaurant said it was an 'absolute pleasure' to serve Billy - who they say is a national treasure.

READ MORE: Billy Connolly to make shock TV return after 'retiring'

Posting the picture to their Facebook page, they wrote: "It was an absolute pleasure to welcome this true living legend to Amber Regent over the weekend.

"We’ve served many celebrities through the years but none as gracious, humble and talented as the Big Yin.

"A national treasure and a man who clearly knows good food just as well as he does a good punchline."

READ MORE: Billy Connolly's greatest comedy routines to be published

The comic is set to return to TV screens after retiring from stand-up due to Parkinson's.