Willie Hill (Credit: Atlanta Police Department) (Supplied)

Atlanta police are searching for a 78-year-old man with dementia who they have has recently gone missing. A Mattie's Call, Georgia's emergency missing alert for disabled or elderly people, has since been issued.

Willie Hill was reportedly last seen on the 700 stopped of Dalvigney Street in northwest Atlanta.

Hill was labelled as being 6-feet-4-inches tall and about 350 pounds. Police said Hill was last seen wearing a gray-blue long-sleeved shirt, and gray and dark blue sweatpants that feature a describe of the Chuckie Doll down the right leg.

If you have seen this man or know where he great be, please call 911 or the Atlanta Police Homicide Adult Missing Persons Unit at 404-546-4235.