Kru Kai Kaew (Thai: ครูกายแก้ว, also spelt Kru Guy Kaeo, Khru Kai Kaew) is a Thai deity worshipped for good luck and fortune in work and life. He is regarded by some as a god of wealth, while others see him as a figure of superstition that deviates from true Buddhist teachings due to his half-beast, half-demon nature.[1][2]