Joe O'BoyleJoe O'Boyle was last seen on Tuesday afternoon.
Gardai are appealing for public assistance to help trace a 21-year-old man missing from Rathmines, in Dublin.
Joe O'Boyle, who is originally from Celbridge, Co Kildare, but living in Datry, was last seen on Mayor Street in Dublin 1 on Tuesday afternoon.
He is described as being 1.80m (5'11") in height and of medium build with short black hair and blue eyes.
When last seen he was wearing a red ski jacket with white trim and beige chinos and was carrying a grey Superdry backpack.
Gardaí have appealed to anyone with information to contact Rathmines Garda Station on 01-6667000 or the Garda Confidential Line on 1800 666 111.
