40-year-old Piers Wilson, from Ballybrack, Dublin, was last seen at around 7pm yesterday evening.
He is described as 6ft tall, of slim build, with short brown hair and blue eyes. When last seen, Piers was wearing a black jacket and blue jeans.
Anyone with information is asked to contact Gardai in Dun Laoghaire on 01 666 5000, or any Garda station.
Update as of Feb. 26, 19:00
Piers has been found safe and well.