Casey is a unisex name of Irish origin, meaning "brave" or "watchful." It is a name that has been popular for both boys and girls throughout the years. People with the name Casey are often seen as independent, courageous, and determined individuals who are not afraid to take risks. They are known for their strong sense of loyalty and their ability to stand up for what they believe in. Overall, Casey is a timeless and versatile name that suits a wide range of personalities.