Davina McLardy was last seen in Colin Street, off Coal Clough Lane, at around 8.45pm on Tuesday (April 6)
She is described as white, 4ft 9in tall, of large build with long, dark blue hair with brown roots. Police say she was wearing a black top, black leggings and grey Vans trainers at the time of her disappearance.
Davina has links to the Blackpool, Burnley, Colne, Telford, Greater Manchester and West Yorkshire areas.
If you have seen her, or know where she is, you should call police on 101 immediately. In an emergency call 999.