Cormac Cullinan is an author, practicing environmental attorney, and governance expert who has worked on environmental governance issues in more than twenty countries. He is a director both of Cullinan and Associates, Inc., a specialist environmental and green-business law firm, and the governance consultancy EnAct International.

At the invitation of Bolivia, Cullinan spoke at the 2009 Climate Change Conference in Copenhagen and led the drafting of the Universal Declaration of the Rights of Mother Earth, which was proclaimed on April 22, 2010, by the People's World Conference on Climate Change and the Environment in Bolivia.

In September 2010, Cullinan played a leading role in establishing a Global Alliance for the Rights of Nature and currently sits on the Executive Committee of the Alliance. Cullinan is also a research associate of the University of Cape Town, sits on the City of Cape Town's climate-change think tank, and is a nonexecutive director of ICLEI Africa. He lives in Cape Town, South Africa.