Koy is a unisex name of Thai origin, meaning "jewel" or "precious stone." It is often used to describe someone who is seen as valuable or special in some way. People with the name Koy are typically known for their unique and exotic personalities. They are often creative, artistic, and have a strong sense of intuition. Koy is a name that carries a sense of elegance, beauty, and mystery, making it a popular choice for parents looking for a distinctive name for their child.