Gardaí have launched an appeal in tracing the whereabouts of 55-year-old Gerard Taylor.
He's missing from his home in Sandyford since last Saturday.
Gerard was last seen when he left his home there at around 9.00am.
He's described as 6ft in height, of medium build with grey hair and blue eyes.
When last seen he was wearing a navy blue jacket with a hood, green trousers and a navy blue cap.
Anyone with information on Gerard's whereabouts should call Dundrum Garda station on 01-666-5600 or the Garda Confidential Line at 1800-666-111.