Aldo A. DeAngelis (March 13, 1931 – February 13, 2004) was an American politician and businessman.
Born in Chicago Heights, Illinois, DeAngelis graduated from Bloom Township High School. He served in the United States Army. DeAngelis graduated from Knox College in Galesburg, Illinois. He also sent to University of Chicago and Governors State University. He moved to Texas and started a steel and tube company. He then moved back to Chicago Heights, Illinois, and started the Vulcan Metal and Tube Company. He served in the Illinois State Senate from 1979 to 1997. DeAngelis then sold his business. During the 1990s, DeAngelis served as a member of the Illinois Republican Party Central Committee from Illinois's 4th congressional district.
After DeAngelis left the Illinois General Assembly, DeAngelis worked as a lobbyist and consultant. DeAngelis died of a heart attack at his home in Olympia Fields, Illinois.