Gardaí are seeking the public's assistance in tracing the whereabouts of 16-year-old Michael Green of Bluebell, Dublin 12.
The teen was last seen at approximately 11am on Monday, January 9 in the Smithfield area.
Michael is described as being 5'10" in height, of slim build with auburn hair and blue eyes. He was last seen wearing a grey tracksuit and white runners.
He's known to frequent the Inchicore area of Dublin.
Anyone with any information relating to Michael's whereabouts is asked to contact Kilmainham Garda Station on 01-6669700, the Garda Confidential Line on 1800 666 111 or any garda station.