A rne Alexander Wilhelmsen is an heir to a Norwegian shipping and cruise line fortune. He is the son of the late Arne Wilhelmsen, one of the three co-founders of Royal Caribbean Cruises, which has grown to become one of the largest cruise companies in the world. The family's wealth is managed through their private holding company, AWilhelmsen AS.

While the family's most famous asset is its stake in the publicly traded Royal Caribbean, AWilhelmsen is a diversified investment company with interests in shipping, real estate, and other industries. Following his father's passing, Arne Alexander and other family members inherited control of the family enterprise. He serves as a key executive and board member at AWilhelmsen, overseeing the family's vast and diverse investment portfolio and continuing the legacy built by his father in the global maritime and leisure industries.