Police are appealing for public assistance to help locate missing Balwyn North teenager Louis Vencescau-Sault.
The 14-year-old was last seen by friends in Bulleen about 6.30pm on 17 October.
Police and family have concerns for his welfare as his disappearance is out of character.
Louis is described as Caucasian in appearance, medium height, thin build with long black hair.
Police have released images of Louis in the hope someone recognises him and can provide information regarding his current whereabouts.
Anyone with information about Louis is asked to contact Boroondara Police Station on 8851 1111.