Police have concerns for the welfare of a young boy who has been missing in the southern suburbs for more than three days.

Rockingham Police are searching for Oliver Galvin who has been missing from home since Friday.

The 12-year-old left his Rockingham home about 11am wearing no shoes, and a white t-shirt and black shorts, with Kiwi logos on the front.

The boy may be in the Midland area and is described as being about 160cm tall, with a slim build, and short black hair.

Police have serious concerns for Oliver’s welfare and urge anyone who sees him, or with information regarding his whereabouts, to contact police immediately on 131 444.