Police are appealing for public assistance to help locate missing Bendigo man John De Haan.
The 80-year-old was last seen on Roeder Street at 3.30pm on 24 December.
Police and family members hold concerns for John due to his age and a medical condition.
John is Caucasian in appearance, 175cm tall, of average build and has short grey hair.
He is believed to be wearing a checked shirt.
Investigators believe John may be driving a silver Isuzu D-Max ute with registration WZF 996.
Police have released an image of John in the hope someone recognises him and comes forward with information about his whereabouts.
Anyone who sees John or his car is urged to contact Bendigo Police Station on 5448 1300.