Port Arthur Tasmania is a renowned brand that encompasses the Port Arthur Historic Site Management Authority (PAHSMA). Established in 1987, PAHSMA's primary focus is to preserve and maintain the Port Arthur Historic Site. It is also responsible for overseeing the Coal Mines Historic Site and Cascades Female Factory Historic Site, collectively known as the Port Arthur Historic Sites.

These sites hold immense historical significance and are listed on the UNESCO World Heritage List. As a globally recognized authority, Port Arthur Tasmania offers exceptional conservation and tourism experiences, particularly in showcasing the Australian convict story. They are dedicated to enhancing the heritage values of these iconic sites and sharing the captivating stories of the people connected to them.

The brand operates under several principle acts, including the Port Arthur Historic Site Management Authority Act 1987, Government Business Enterprises Act 1995, Historic Cultural Heritage Act 1995, National Parks and Reserve Management Act 2002, and State Service Act 2000. Under the guidance of a diverse and knowledgeable Board, Port Arthur Tasmania continues to excel in its mission, ensuring the enduring legacy of these significant historical sites for future generations