Giorgos Kastrinakis (alternate spellings: Georgios, George) (Greek: Γιώργος Καστρινάκης) (born June 9, 1950) is a retired Greek American professional basketball player. He played basketball professionally for many years in the Greek Basket League. At 2.04 m tall, he played as a power forward-center. During his basketball playing career, Kastrinakis was mainly known for his spectacular dunking ability.