48-year-old Rosemary Gregg and her daughter Orlaith have been missing from their home in Limavady, Londonderry, since Friday last.
Rosemary is described as being 5’9” tall, of medium build, with brown eyes, and shoulder-length dirty blonde hair. She was wearing a black coloured Superdry jacket when last seen.
Rosemary’s daughter Orlaith is a child of slim build with blonde hair.
PSNI detective said it is possible that the pair may be in the Belfast area, but could also have travelled to Dublin.
Anyone with information on Rosemary and Orlaith’s whereabouts is asked to contact police in Limavady on 101.