Grandpa|image1=Grandpa (Pompompurin).png|japanese_name=おじいちゃん (Grandpa)|birthday=September 15th|gender=Male|universe=Pompompurin|species=Dog|breed=Golden Retriever|appearance=A Golden Retriever male dog that have a brown hat with glasses a brown with white squares jacket and with a cane to walk.|description=When I was young, I traveled the world. There is nothing you don't know.|spouse=Grandma (Pompompurin)|grand-children=Pompompurin|created_by=Sanrio