Arkardiusz Niedojad is five foot nine, of slim build, with blond hair and blue eyes.
Gardaí are appealing to the public for assistance in locating a 16 year old boy from Westmeath.
Arkardiusz Niedojad has been missing from the Mullingar area since Friday, October 1st.
He is described as being five foot nine inches in height, of slim build, with blond hair and blue eyes.
When last seen, he was wearing a grey tracksuit top and bottoms, a black Canada Goose jacket and white runners.
Anyone with information is asked to contact Mullingar Garda Station.