The charity was contacted after a witness mentioned they heard a canine being smacked and yelping at round 2pm on Sunday February 11 on Cross Street.
When they appeared they noticed a person hitting a Pomeranian-type canine. He was walking three Pomeranian-type dogs on the time.
The man is described as white, aged round 40s, slim and round 5ft 10in tall. He was carrying a beanie hat and darkish clothes.
RSPCA Inspector Beckie Harlock mentioned: “We are really keen to speak to the man to help us with our enquiries.
“If anyone recognises the description of the man or the dogs from this area we would ask them to call us.”
Ring 0300 123 8018 quoting incident 01221579 with any data.