The most recent incident happened on Wednesday at Mom's Pizza at 219 East Willow Grove Avenue. Investigators say the man pointed a gun at an employee and demanded money.
That worker gave the suspect $190 in cash from the register and the bandit fled.
He is described as a black male standing 5'10" tall with a dark complexion. He was wearing a ski mask, black pants and a blue shirt.
A suspect fitting a similar description is also wanted for the robbery of a Holiday Express pizza at 7415 Stenton Avenue on July 29th and a Papa John's Pizza at 1555 Wadsworth Avenue on July 31st.
RELATED: Watch the surveillance video released by police
Anyone with information on this man is asked to contact police at 215.686.TIPS (8477) or at PhillyPolice.com.