16-year-old Josh Greaves has been missing from his home in Harrogate since 12 May 2013 and officers need to speak to him to ensure he is safe and well.
Police believe that the missing teenager may be in the Scarborough area.
Josh is described as white, around 6ft 2in, of slim build and has short brown hair.
Sergeant Ed Rogerson of Harrogate Police, said:
We believe Josh is currently in the Scarborough area and we’re appealing to anyone who has seen him or knows of his current whereabouts to contact the police.
Anyone with any information is asked to contact North Yorkshire Police on 101 and pass information to the Force Control Room. Please quote incident number 12130076333 when calling with information.