Henry "Bob" Roberts, also known as Lee, was last known to be in the area of the 2900 block of Crane Street, right off the Eastex Freeway between Collingsworth and Cavalcade.
Roberts has brown eyes and black and white hair with a receding hair line. He is 5 feet 7 inches tall, weighs 142 pounds and has a surgical scar on his right forearm.
He was last seen wearing dark green dress pants and white tennis shoes.
According to officials, Roberts is in the early stages of Alzheimer's disease. He also has high blood pressure and a heart condition.
No other details were immediately released.
Anyone with information on his whereabouts can call the Houston Police Department Missing Persons Division at 713-731-5223.