Cullun is a name of Scottish origin, derived from the Gaelic word cull, meaning little hill or mound. It is also associated with the Cullun clan, a sept of the MacLeod clan in the Scottish Highlands. The name Cullun is thought to have originated in the 15th century, and it has been recorded in various forms throughout history, including Cull, Cullie, and Cullin. In modern times, the name Cullun has gained popularity as a given name, symbolizing strength and resilience.