Cozzene (May 8, 1980 - October 7, 2008) is an American Champion Thoroughbred racehorse and outstanding sire. He was bred and raced by U.S. Racing Hall of Fame inductee John A. Nerud and trained by his son, Jan.Cozzene began racing at age three, winning three of six starts. At age four he won three more races from ten starts and ran third in the Breeders' Cup Mile. In 1985, the then five-year-old Cozzene had his best year in racing with wins in won four of eight starts.