The teenager was last seen on Wednesday.
Gardaí at Store Street Station are appealing to the public for assistance in tracing the whereabouts of 17-year-old Bridget Connors who was last seen on November 28 near Eden Quay.
Bridget is described as 5ft 2 in height, of slim build with dark blonde hair and green/blue eyes.
When last seen she was wearing grey bottoms and a light blue rain jacket.
Anyone with information is asked to contact Store Street Garda Station on 01 6668000, the Garda Confidential Telephone Line 1800 666 111 or any Garda Station.