Kaydon Turner-Pearce was last seen in Morecambe and has links to Blackpool.
Kaydon is described as white, 5ft 7inches tall, of stocky build and short brown hair.
He was last seen wearing a blue zip jacket, grey joggers and carrying a ruck sack.
A police spokesman said: “If you have seen Kaydon or have any information, please call us on 101 quoting log reference 1606 of 11 Feb.
“Please share this post and thanks for your help.”