Fifteen year old Sonny Housby hasn't been seen since he left his home eight days ago.
He was last spotted at around 2pm on February 22.
He is described as a white, skinny male, around 5'4" tall with short brown hair.
It is not known what he was wearing when he disappeared.
Officers are keen to speak to anyone who might be able to help them trace Sonny.
Sonny is known to frequent the Royton area, and could be somewhere in that part of the borough.
Anyone with any information should contact Greater Manchester Police, using the phone number 101.
