Mandurah Police are seeking information regarding the whereabouts of missing 23-year-old, Jake Neville Beard-Miller.
He was last seen in the Mandurah area around 5.10am on Thursday, November 1 and was possibly in the Success area around 10.30am the same day.
Mr Beard-Miller is described as fair skinned with a medium build, approximately 182cms tall, with short brown hair and a short beard.
He was last seen wearing beige pants, a blue t-shirt and a thick gold chain around his neck and wrist.
The missing man may be driving a white 2013 model D-MAX utility, registration 1EGL045.
Concerns are held for his welfare and anyone who sees Mr Beard-Miller or his vehicle is asked to call police immediately on 131 444.