Police have increasing concerns about a missing 14-year-old boy.

Paora Peachey hasn't been seen since July 19 while he was living in Henderson in west Auckland.

The teenager hasn't made any contact with his family in Gisborne or caregivers since.

Police say he could be in Auckland or may have returned to his home town.

They have concerns for his safety due to the length of time he's been missing.

He's described as Maori, of medium build, with short dark hair.