UPDATE: Mr Delphin has been located safe and well.
He was located by police on Monday morning.
Tasmania Police is seeking assistance from members of the public to locate 29-year-old Johnathon Delphin.
The man has not been seen since late in the evening on Thursday, September 15 in the Claremont area.
He was last seen wearing blue jeans and a black hooded jumper and was driving a 2005 model black coloured Toyota Hilux utility, registration number D41TL.
Police believe Mr Delphin may have been travelling to the Derwent Valley area.
Acting Sergeant Jason Klug of the Glenorchy Police Station said: “If anyone has information as to the whereabouts or welfare of Mr Delphin or his vehicle, I encourage them to phone police.”
Any information can be provided by contacting police on 131444 or Crime stoppers on 1800 333 000.