Robert Eugene Jenson (May 11, 1931 – January 6, 2018) was a Republican politician from the U.S. state of Oregon.

At the time of his retirement, as the member with the most seniority, he held the honorary title of Dean of the House.

He served in the United States Air Force from 1950 to 1954 and then worked as an airport commissioner.

[2][3] Jenson moved to eastern Oregon in 1967 and taught at Blue Mountain Community College for 26 years.

[2][3] In 1996, Jenson ran as a Democrat for the seat in the Oregon House of Representatives vacated by Chuck Norris, who did not seek re-election, defeating Republican Don Armstrong.