Detectives from Dandenong Crime Investigation Unit are appealing for public assistance to help locate Masi Ayiik.
The 29-year-old is wanted for questioning in relation to a serious assault in Dandenong about 4pm on 16 July.
Ayiik is known to frequent the Dandenong and Doveton areas.
Investigators have released images of Ayiik in the hope that someone may have information on his current whereabouts.
He is perceived to be African in appearance, about 180cm tall, with a slim build and bald.
Anyone who sights Ayiik or has information about his whereabouts is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au