Police are appealing for information on Michael Roberts Caygill (68) who was last seen on Friday 13 January 2012 when he left a Bed and Breakfast in Stornoway, stating his intention to return in two to three days.
He failed to return and was reported missing on Saturday.
Mr Caygill is described as white, of medium build, Scottish accent, 5ft 6ins - 5ft 7ins and has fair hair.
He habitually wears a hat (blue/green) and may be wearing grey/blue trousers, a dark green jacket and brown shoes.
Anyone who may have seen Mr Caygill or knows where he might be is urged to call Stornoway Police on 01851 702222 or their local police station.