Roslea is a variant of the name Roslea, which is of Irish origin. It is derived from the Gaelic word ros, meaning rose, and is often associated with the qualities of beauty, elegance, and refinement. Roslea is a rare name in many countries, including the United States, where it is not commonly found. However, it has been used in some cultures, including the Irish and Scottish cultures. Roslea is often given to girls born into families of Irish or Scottish descent.