Family of a missing Sydney man have appealed for more help, after the 25-year-old disappeared in the early hours of Friday morning.

Patrick Hahn, known as "PJ", was drinking with mates at the Marlborough Hotel in Newtown on Thursday evening, before police believe he travelled by taxi to a spot on Victoria Road, Drummoyne at about 1.15am on Friday.

Police are appealing for help finding 25-year-old Patrick Hahn, who went missing early on Friday from Drummoyne. Credit:NSW Police/Facebook

Mr Hahn was last seen walking along Victoria Road towards the Gladesville Bridge.

Family posted on Facebook that they had seen CCTV footage of Mr Hahn walking past the 7/11 on Victoria Road about 1.30am on Friday. They pleaded with anyone who may have driven past to come forward with any information.