Police are appealing for public assistance to locate an Indigenous woman missing from the Blue Mountains area.

Deborah Beale, 62, was last seen in Warrimoo, at about 8.30pm on Saturday.

When she was unable to be located or contacted, officers attached to Blue Mountains Police Area Command were notified and commenced inquiries into her whereabouts.

Police and family hold concerns for Ms Beale's welfare.

She is described as being of Aboriginal/Torres Strait Islander appearance, 175cm tall, of a medium build, with brown hair and brown eyes.

Ms Beale was last seen wearing a cream-coloured shirt, leopard print shorts and thongs.

Police said she may be travelling in a white Kia Cerato with NSW registration DBB54Q.

Ms Beale is known to frequent the Springwood, Katoomba, Penrith, Kingswood, Mount Druitt and Sydney CBD areas.

Members of the public with information into her whereabouts are urged to contact Springwood Police or Crime Stoppers on 1800 333 000.

Information is managed on a confidential basis. The public is reminded not to report information via NSW Police social media pages.