Carl William Duckworth (January 25, 1955 – May 1, 2018) was an American politician. A Democrat, he served in the Utah State House of Representatives where he represented the 22nd District in Magna, Utah, from 1999–2008. He retired after being diagnosed (in late 2007) with multiple myeloma, an abnormal blood cell cancer. Duckworth died of cancer on May 1, 2018 at the age of 63.