Denise Moreno Ducheny (born March 21, 1952) is an American lawyer and former politician from California. She is a former California State Senator who represented Senate District 40, which includes southern San Diego County, part of Riverside County, and all of Imperial County. Ducheny is a Democrat. She lives with her husband, Al, in San Diego, California. She is now a senior policy advisor at the at the University of California, San Diego.