Gardaí are requesting the public's assistance in locating 15-year-old Craig Boylan.
Craig, who is from Limerick, has been missing since August 16.
He is described as 5ft 8in, of slim build with short red hair and green eyes.
He was last seen on Sarsfield Street at 4.30pm on August 16 wearing a grey hoodie, a white t-shirt, grey tracksuit pants and black runners.
Anyone who may have seen Craig, or who has any information about his whereabouts is asked to contact the Henry Street Garda Station on 061-212400 or the Garda Confidential Line on 1800 66 111.