Police are appealing for assistance to track down a thief who used counterfeit money in shopping centres across the west.

The man is believed to be behind multiple deceptions, including at the shopping centre on Taylors Road in Rockbank on 5 November.

Police believe the man has used a sum of counterfeit Australian currency at several shopping centres across Rockbank, Werribee, and Footscray.

Police have released images of a man they believe may be able to assist with their enquiries.

They are appealing for anyone with information to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au