Missing 15-year-old Madison Miller is known to frequent Dandenong.
Police are appealing for help to find her after she was last seen at a Moonee Ponds home at 7.40pm on Sunday 23 October.
Madison is described as about 167 centimetres tall with a medium build, blue/green eyes and brown hair with a shaved undercut.
She was last seen wearing a grey T-shirt, black satin jacket, blue jeans, and black Nike runners, and carrying a black and white backpack.
Madison is also known to frequent the Port Melbourne, Footscray, Ballarat, Ascot Vale and Flemington areas, and more recently the Geelong and Point Cook areas.
Police urged anyone who saw Madison to call the Moonee Ponds police station on 9373 5200.
