Stefan Muntean has been located safe and well.
Gardaí have thanked the public for their assistance.
A teenage boy, 14, is missing from Dalkey in Co Dublin.
Stefan Muntean is 5' 8" with brown hair, of medium build with brown eyes.
When he was last seen yesterday he was wearing a grey and black tracksuit.
Anyone with information on his whereabouts is asked to contact Dun Laoghaire Garda Station.
Alternatively, members of the public can contact the Garda Confidential Line on 1800 666 111 or any Garda station.