Crowley is a surname of Scottish origin, derived from the Gaelic word "cruadh-ghleann" meaning "hard valley." It is commonly found in Ireland and Scotland, with variations in spelling such as "Crawley" or "Croleigh." The name Crowley is associated with strength, resilience, and determination, reflecting the characteristics of those who bear it. It has a distinguished and noble sound, evoking images of ancient warriors and leaders. Overall, Crowley is a powerful and intriguing name with a rich historical significance.