Ronald Lee Wyden (born May 3, 1949) is an American politician from Oregon and a member of the Democratic Party. He won a seat in the United States House of Representatives in 1980, and served there until 1996, when he became a U.S. Senator.

While teaching gerontology at several Oregon universities, Wyden founded the Oregon chapter of the Gray Panthers; he led that organization from 1974 to 1980. Wyden is also the former director of the Oregon Legal Services Center for Elderly, a nonprofit law service.

In the 1980 Democratic primary, Wyden, who was just 30 years old at the time, upset incumbent Representative Bob Duncan in Oregon's 3rd congressional district. Later that fall, Wyden easily defeated his Republican opponent, Darrell Conger. Wyden was re-elected to the House in each of the following seven elections.