Police are appealing for public assistance to help locate missing man Josip.
The 22-year-old was last seen in Spotswood about 1.30pm on Wednesday, 7 April.
He is described as 180cm tall, with a medium build and short brown hair.
It is believed he could be in the Newport and Lerderderg areas.
Police and family hold concerns for his welfare as his disappearance is extremely out of character.
Police have released an image of Josip in the hope someone recognises him and can provide information on his current whereabouts.
Anyone who sees Josip is urged to contact Williamstown Police Station on 9393 9555.