Yale School of the Environment (YSE) is a professional school of Yale University. It was founded to train foresters, and now trains environmental students through four 2-year degree programs (Master of Environmental Management, Master of Environmental Science, Master of Forestry, and Master of Forest Science), two accelerated degree programs for graduates of Yale College, and a 5-year PhD program. Still offering forestry instruction, the school has the oldest graduate forestry program in the United States.

The school changed its name to the Yale School of the Environment in July 2020. It was previously the Yale School of Forestry & Environmental Studies.