Police have released images of a man they want to speak to regarding the violent robbery of an elderly man in Chermside shopping centre on Sunday.

The 74-year-old victim went into the toilets near the food court about 8am and was attacked from behind by a man, who tried to snatch the wallet from the victim's pocket, according to police.

Police are searching for this man after a violent robbery in Chermside shopping centre. Credit:Queensland Police Service

A struggle ensued, before the elderly man was pushed to the ground and the thief ran off with the wallet. The victim was not physically injured.

Investigations were continuing, but police have appealed to anyone who could identify the pictured man or has any information to call Policelink on 131 444.