Gardaí at Tallaght Station are seeking the public's assistance in tracing the whereabouts of 15-year-old Margaret Cash.
Margaret has been missing from her home at Cushlawn Park, Tallaght since 19 January. She has not made contact since.
Margaret is described as 5 foot 4 inches in height with brown shoulder length hair.
She is of slim build and has what has been described as a deep Dublin accent. When last seen she was wearing navy tracksuit bottoms and a white top.
Anyone with information in relation to Margaret is asked to contact gardaí at Tallaght Station on (01) 666 6000.