Donald Angelini (September 30, 1926 – December 6, 2000) was a mobster nicknamed "The Wizard of Odds" with the Chicago Outfit, a criminal organization that specialized in gambling operations.
After years in the Outfit, Angelini became the caporegime for a crew operating illegal gambling rackets in Elmhurst, Illinois.
Angelini found himself operating with a new crew in Las Vegas at a time when the Outfit's flagship casinos were badly crimped due to federal investigations.
In the late 1980s, Angelini, Sam "Wings" Carlisi, and John "No Nose" DiFronzo attempted to extend Outfit influence over the gambling operations of the Rincon Indian Reservation near San Diego, California.
In 1989, Angelini was sentenced to 37 months in prison on gambling and Racketeer Influenced and Corrupt Organizations Act (RICO) charges resulting from the Rincon operation.