Ben was last seen on 25th March 2018 in the Mount Eliza area.
Police have concerns for his welfare due to his age and the length of time he has been missing.
Ben is 155cm tall with a skinny build, fair complexion and blonde hair.
Ben is known to frequent the Hastings and Frankston areas.
Police have also released an image of Ben in the hope someone recognises him and can provide information regarding his current whereabouts.
Anyone with information about Ben is asked to contact Mornington Police Station on 5970 4900.
