Police are appealing for public assistance to help locate missing man Dusan.
The 79-year-old was last seen leaving an address on Katandra Road, Ormond, about 5.30pm on Thursday, 6 June.
Police and family have concerns for Dusan's welfare as he has Alzheimer's and may be confused as to his surroundings.
Dusan is described as 176cm tall with a thin build and balding grey hair.
He was last seen wearing grey pants, a blue jacket, brown shoes and a baseball cap.
Dusan is believed to be travelling in a blue Toyota Corolla with registration 1RG5LQ.
Police believe he may have travelled to the outer south-eastern suburbs but urge everyone to be on the lookout for the vehicle.
Dusan also speaks limited English and has only lived in Victoria for a short time.
Anyone with information on Dusan's whereabouts is urged to contact Caulfield Police Station on (03) 9524 9500.