Kyle Chamberlain was last seen on Monday, 8 April, in Ashtons Green Drive.
He is described as white male, around 5ft 8in tall, with short blonde hair and a pale complexion.
When last seen, he was wearing a black cap, black parker coat, black trousers and white trainers. He was also carrying a backpack.
Kyle is known to frequent the St Helens, Liverpool and Accrington areas.
Anyone who has seen Kyle, or knows of his whereabouts is asked to DM @MerPolCC, call 101 or contact the Missing People charity on 116 000.