The girl was last seen on November 22 at a Redbank Plains shopping centre but has not been in contact with family since.
She is described as Pacific Islander, about 165cm tall with black shoulder-length hair.
She was last seen wearing a black singlet and black jeans.
Anyone with any information regarding the whereabouts of the girl is asked contact police.
Queensland Police are also searching for Sunshine Coast woman and two children.
The woman, 32, and the two children, both girls aged three and two, left a Maltman Street, Kings Beach, address yesterday morning about 9am.
All three have not been seen or heard from since.
Police hold concerns for their safety and wellbeing.