List of Famous people who are 81

Anja Breien is a Norwegian film director and screenwriter. One of the leading figures of the Norwegian film industry, and one of the first women to rise to prominence as a writer-director in Norway, Breien's body of work in fiction and documentary explores social and political issues, notably women's rights within the context of Norwegian society.

Lucy Shapiro is an American developmental biologist. She is a professor of Developmental Biology at the Stanford University School of Medicine. She is the Ludwig Professor of Cancer Research and the director of the Beckman Center for Molecular and Genetic Medicine. She founded a new field in developmental biology, using microorganisms to examine fundamental questions in developmental biology. Her work has furthered understanding of the basis of stem cell function and the generation of biological diversity. Her ideas have revolutionized understanding of bacterial genetic networks and helped researchers to develop novel drugs to fight antibiotic resistance and emerging infectious diseases. In 2013, Shapiro was presented with the 2011 National Medal of Science. for "her pioneering discovery that the bacterial cell is controlled by an integrated genetic circuit functioning in time and space that serves as a systems engineering paradigm underlying cell differentiation and ultimately the generation of diversity in all organisms."

Rodney James Baxter FRS FAA is an Australian physicist, specializing in statistical mechanics. He is well known for his work in exactly solved models, in particular vertex models such as the six-vertex model and eight-vertex model, and the chiral Potts model and hard hexagon model. A recurring theme in the solution of such models, the Yang–Baxter equation, also known as the "star–triangle relation", is named in his honour.

Antti Ilmari Aarnio-Wihuri is a Finnish billionaire businessman. He heads the Wihuri Group, a Finnish diversified conglomerate that has been in existence for over 100 years. It employs over 5,000, and is involved in the industries of packaging, food distribution, aviation and construction equipment retail, private jet charter, and ambulance services. He himself is the largest single shareholder in the Canadian packaging company Winpak.