Kirk R. Smith (January 19, 1947June 15, 2020) was an American expert on the health and climate effects of household energy use in developing nations. He held a professorship in Global Environmental Health at the University of California, Berkeley, where his research focused on the relationships among environmental quality, health, resource use, climate, development, and policy in developing countries. Smith contributed a great deal to the Intergovernmental Panel on Climate Change (IPCC), and the work of the IPCC (including the contributions of many scientists) was recognized by the joint award of the 2007 Nobel Peace Prize. Smith was a recipient of the 2012 Tyler Prize for Environmental Achievement for his work with cookstoves, health, and climate. He is also credited with designing and implementing the first randomized controlled trial of the health effects of indoor air pollution (IAP) from cookstoves.