Police are urgently seeking assistance in finding 65-year-old Brian Gould as they have concerns for his welfare.
Mr Gould was last seen leaving an address on Selwyn Court, Girrawheen about 3pm on Thursday, September 3.
He is light-skinned, about 183cm tall, has a solid build, blue eyes and brown hair.
He was last seen wearing a black flannel shirt, pants and Ugg boots.
Mr Gould has a medical condition that requires medication, which he did not take with him.
Anyone who sees Mr Gould or has information regarding his whereabouts is asked to call police immediately on 131 444.