Adam Benjamin Jr. (August 6, 1935 – September 7, 1982) was an American politician and a United States Representative from Indiana's 1st congressional district, serving from 1977 until his death from a heart attack in Washington, D.C. in 1982.

[3] After serving in the Marine Corps, he gained an appointment to the United States Military Academy, West Point, New York, earning a B.S.

[4] During his work in public service, Benjamin attended Valparaiso University Law School, graduated with his Juris Doctor and was admitted to the Indiana Bar Association in 1966.

In the general election Benjamin beat evangelical Protestant educator, and co-founder of Moral Majority, Robert J. Billings, with a 40% margin of victory.

Benjamin sat on the House Appropriations Committee, and served as the chairman of the House Appropriations Subcommittee on Transportation, aiding Northwest Indiana with projects such as improved Amtrak facilities, new South Shore Railroad commuter cars, and funding for an I-94 interchange to provide access to the Indiana Dunes National Lakeshore as well as improvements in Gary's bus system and municipal airport.

He retained his seat in the 1978 and 1980 elections, and was seeking a fourth congressional term when he died suddenly from a heart attack in September 1982.