Police are appealing for public assistance to help locate Brooke Lawson, Victoria Police say.
The 13-year-old Hoppers Crossing girl was last seen on 29 August.
Police and family members hold concerns for Brooke’s welfare due to her age and have released an image in the hope someone recognises her and can provide information on her whereabouts.
Brooke is described as having long fair hair.
She is known to frequent the south-eastern suburbs, particularly Endeavour Hills, Narre Warren and Dandenong.
Anyone who sees Brooke or has information on her whereabouts is urged to contact Werribee Police Station on 9742 9444.