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