Cliff Stewart Bentz (born January 12, 1952) is an American politician and lawyer serving as the U.S. representative for Oregon's 2nd congressional district since 2021. He previously served in the Oregon Senate from 2018 to 2020 and in the Oregon House of Representatives from 2008 to 2018. He is a member of the Republican Party.

Bentz was first elected to the U.S. House of Representatives in 2020. He was re-elected in 2022 and 2024.

Since 2025, Bentz is the sole Republican in Oregon's congressional delegation and is the only man representing Oregon in the U.S. House of Representatives.

Bentz was born in Salem, Oregon, and raised on ranches in the eastern Oregon communities of Fields and Drewsey. He graduated from Regis High School in the Willamette Valley city of Stayton in 1970. He received a bachelor's degree from Eastern Oregon State College (now Eastern Oregon University) in 1974 and a J.D. from Lewis & Clark Law School in 1977.

From 1977 to 1980, Bentz was a law associate with the Ontario, Oregon, law firm Yturri Rose, and was made a partner in the firm in 1980, a position he still holds. He specializes in agricultural, water, and real property law. He also owns a 100-acre alfalfa farm.

Bentz began his career as a member of the Oregon Water Resources Commission from 1988 to 1996. He served as chair of the commission from 1994 to 1996.

In 2008, Bentz was appointed by county commissioners in House District 60 to replace Tom Butler in the Oregon House of Representatives after Butler resigned to pursue a church mission. He defeated Tim K. Smith in the Republican primary in May 2008, and was unopposed in the general election. In 2010, Bentz won another term unopposed in both the primary and the general election.

On January 8, 2018, Bentz was sworn in as state senator to replace Ted Ferrioli, who resigned to take a political appointment. Bentz resigned his seat in the Oregon House and was appointed to the senate seat by the county commissioners in the senate district.