He was last seen in Ulverston yesterday (November 27) at about 9pm.
Dylan is about 5ft 11ins tall, of slim build, with short, dark brown hair.
He was last seen wearing a grey tracksuit, black Nike trainers and had a black or dark blue bag.
It is believed he might be in the Barrow area.
Anyone who knows where Dylan might be is asked to call 101 – and if Dylan sees this himself he is urged to get in touch on the same number.