Roger William Jepsen (December 23, 1928 – November 13, 2020) was an American politician from Iowa.

At ASU, Jepsen was a member of Tau Kappa Epsilon fraternity.

In 1978, he was elected to the United States Senate, narrowly defeating incumbent Dick Clark in a major surprise, receiving strong support from National Conservative Political Action Committee (NCPAC).

Fellow Republican colleagues praised Jepsen for persuading then-U.S. President Ronald Reagan to lift the agricultural ban against the Soviet Union.

Jepsen died on November 13, 2020, at the Clarissa C. Cook Hospice House in Bettendorf, Iowa, at age 91.