Police are appealing for public assistance to help locate missing man Ross Wilkinson.
The 53-year-old Carrum Downs man was last seen leaving his home address on Aster Avenue about 9pm on 16 September.
Police have concerns for Ross due to a medical condition.
Ross is Caucasian in appearance, 175cm, medium build with grey hair and grey eyes.
Ross is known to frequent the Seaford Beach, Sandhurst and Point Leo areas.
Investigators have released a photo of Ross in the hope someone may recognise him and be able to provide information on his whereabouts.
Anyone with information is urged to contact Carrum Downs Police on 8770 4100.