The 17-year-old has been missing since Sunday.
Gardaí are appealing for information about a missing teenager.
Janelle Quinn has been missing from the Mullahoran, Cavan since Sunday.
The 17-year-old is described as being approximately 5'4", with long dark brown and green eyes.
When last seen she was wearing a black North Face tracksuit.
She is known to frequent Mullingar, Athlone, Longford and Dublin.