Mandurah Detectives are seeking information about the whereabouts of 34-year-old Edward Norman Walley and 30-year-old Anain Victoria Whitehead.
Police believe Mr Walley and Ms Whitehead may be able to assist with an investigation into a number of burglary and stealing incidents in the southern suburbs.
Members of the public are advised not to approach them, but to report any sightings to Police on 131 444.
Anyone with information regarding the recent movements Mr Walley and Ms Whitehead is asked to call Crime Stoppers on 1800 333 000 or report it online at crimestopperswa.com.au.