It happened Monday morning in front of the Rite Aid Pharmacy on the 2500 block of Aramingo Avenue.
Police say a 20 year-old woman tied her 5 month-old grey and white Pitbull to a pole in front of the store at 11 a.m. and went inside to purchase some items.
Minutes later, a man in a royal blue SUV can be seen pulling up to the store and taking the dog before fleeing in an unknown direction.
The suspect is described as a bald white or Hispanic male wearing all gray clothing.
Anyone with information should call police at 215.686.TIPS (8477) or text a tip to PPD TIP (773847).