Wayne Parkment, 61, was last seen in the Spital Street area on Thursday, April 10, and the police are increasingly concerned about their well -being.
It is described as a mixed breed, around 6 feet high, bald and with a short gray beard and mustache. Wayne can be wearing black trotter, a gray upper part, a dark blue jacket and black shoes.
CCTV from the day he disappeared shows him in the center of Dartford.
Officers say Wayne sometimes confuses and can walk with a deck. You are likely to be on foot and know how to use a cord around your neck with two united keys.
Visits regularly around Dartford, including Lowfield Street and Princes Road.
Anyone who see Wayne or knows where he could be must call 999 immediately, citing reference 12-0856.