The name Keir is of Scottish origin and means dark or black. It is a strong and masculine name that exudes a sense of mystery and sophistication. People with the name Keir are often seen as intelligent, charismatic, and determined individuals. They have a natural ability to lead and inspire others, and are known for their unwavering confidence and resilience. Overall, Keir is a unique and powerful name that leaves a lasting impression wherever it is heard.