Ciaron Nuttall (19), was last seen on Cardigan Street, Royton, on March 5th.
His phone and social network accounts have not been used since that time, which is out of character and he has not accessed his bank account.
Following information received from the public that Ciaron may be living in Bacup, officers from the Major Incident Team will be distributing posters in the hope of finding him.
Ciaron is white, 5ft. 9in. tall, of slim build with short brown hair and has links to Oldham and Rochdale and family members in Wigan.
Detective Chief Inspector Pete Giles, from the Major Incident Team, said: “It is nearly 12 weeks since Ciaron was last seen and he has still not used his bank or social network accounts, which is concerning.
“His family are extremely worried about him and all I would ask is that he ring them or the police and let us know you are safe and well.
“We have had some information suggesting he might be living in the Bacup area so I would urge the community there to look out for him and if anyone has seen him please call us.”
Anyone with information is asked to call the Major Incident Team on 0161 856 2446, or the independent charity Crimestoppers, anonymously, on 0800 555 111