Police are appealing for public assistance to help locate missing teenagers Eden Perry and Sharlie Rhodes, Victoria Police say.
Eden, aged 15, was last seen at her home address in Kangaroo Flat on 3 August.
She is believed to be with Sharlie, 16, who was last seen at her home address in California Gully on 8 August.
It is believed they may be in the Bendigo, Kyabram or Undera areas.
The pair are also known to frequent the Melbourne CBD, Murrindindi and Shepparton areas.
Police have released images of the girls (Sharlie on left, Eden on right) in the hope someone recognises them and can provide details on their whereabouts.
Eden, who sometimes wears glasses, has a thin build, long dark hair and piercings on her lip and nose.
She was last seen wearing a black hooded jumper with a white logo and is likely to have a pink backpack.
Sharlie is described as about 175cm tall with a thin build, shoulder-length brown hair, freckles on her face and a facial piercing below her eye.
Anyone with information or who sights the pair is urged to contact Bendigo Police Station on 5448 1300.