The body of Sydney man Patrick Hahn, who has been missing since Friday, is believed to have been found in waters on Sydney’s north shore.

The 25-year-old Mr Hahn disappeared early on Friday morning after a night out sparking an appeal by police and his family for the public’s help to find him.

Police said they had found a body in the water at Hunters Hill about 2.45pm on Christmas Day.

While police have not yet confirmed that the body found is that of Mr Hahn, his family took to social media to express their grief.

“Over the past few days the love and support from everyone has been tremendous,” a family wrote on Facebook.

“We have received some very sad news that confirms the passing of our brother, son & friend PJ.

Mr Hahn was last seen drinking with friends last Thursday night. Photo: Supplied/NSW Police

“We are appreciative for the efforts of family, friends, authorities and even strangers over the course of the past few days.

“We know PJ was loved by many and plan to share further details in the coming days. We will love you forever and always PJ.”

Mr Hahn had last been seen drinking with friends in the city’s inner west on December 21.

Police believe Mr Hahn caught a taxi from the Marlborough Hotel, Newtown, to his home suburb of Drummoyne just after 1am on Friday.

He was last seen walking along Victoria Road towards the Gladesville Bridge, NSW Police said in a statement on Sunday.

His family, in a post on social media, said they had obtained footage of PJ walking past a service station in the area.

– with AAP