Police are seeking public assistance to help locate a 21-year-old Maroochydore woman reported missing from Nambour.
Elleny Matthews was last seen in Maroochydore on August 5 and is believed to be travelling with a two-year-old boy known to her.
Police hold concerns for their welfare as her behaviour is out of character.
Ms Matthews is described as Caucasian in appearance, 164cm tall with a slim build, dark coloured hair and blue eyes.
The two-year-old boy is described as Caucasian in appearance with blonde hair and blue eyes.
It is believed the pair could be travelling around the Maroochydore, Yandina and Nambour area in a 2005 white Holden Astra with Queensland registration 982 WZP or a black Mitsubishi Lancer with Queensland registration 053 AQ2.
Police appeal to Elleny, or anyone with information in relation to the pair's whereabouts, to contact police immediately.
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting or call 131 444.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.