Police are appealing for public assistance to help locate Tahlia Austin.
The 17-year-old Coburg teenager was last seen in Reservoir on Monday 13 May.
Police hold concerns for Tahlia’s welfare due to her age and have released an image in the hope someone recognises her and can provide information on her whereabouts.
Tahlia is about 180cm with a thin build, olive skin, brown eyes, blonde curly hair, and a nose and lip piercing.
She is known to frequent the Reservoir and Broadmeadows areas.
Anyone who sees Tahlia or has information on her whereabouts is urged to contact Preston Police Station on 9479 6111.