Police are appealing for public assistance to help locate missing Sunbury man Chris.
The 39-year-old was last seen by family in December and is thought to have been frequenting the Keilor area.
Police and family are concerned for his welfare due the length of time he has been missing.
Investigators have released an image of Chris in the hope someone recognises him and can provide information on his current whereabouts.
Anyone who sees Chris is urged to contact Keilor Downs Police Station on 9365 3333.