Roy Johnson, 48, was last seen in the Harton Lane area of South Shields at around 22.55 on Saturday 20 January 2024.
Searches are currently ongoing to find him, and officers are asking anybody who thinks they may have seen Roy to get in touch with police.
He is described as a white man, approximately 5 foot 10 inches in height, of medium build, with short grey hair.
Roy was last known to be wearing a grey t-shirt and hoodie, denim jeans, black trainers and a black coat.
He is understood to have links to the Kenton area of Newcastle.
Alternatively the Missing Person's charity can be told information relating to Roy by calling 116000, or CrimeStoppers (anonymously) on 0800555111.