William Boyd is Professor of Law at UCLA School of Law and Professor at the Institute of the Environment and Sustainability.

He is the founding Director of the Laboratory for Energy & Environmental Policy innovation (LEEP) and the project lead for the Governors' Climate and Forests Task Force (GCF), a unique subnational collaboration of 38 states and provinces from Brazil, Colombia, Ecuador, Indonesia, Mexico, Nigeria, Peru, Spain, and the United States that is working to develop regulatory frameworks to reduce emissions from deforestation and land use.

Boyd was previously a Professor of Law and John H. Schultz Energy Law Fellow at University of Colorado Boulder School of Law. His primary research and teaching interests are in energy law and regulation, climate change law and policy, and environmental law.