2018 United States House of Representatives elections in Oregon

The 2018 United States House of Representatives elections in Oregon were held on Tuesday, November 6, 2018, to elect the five U.S. representatives from the U.S. state of Oregon; one from each of the state's five congressional districts. The primaries were held on May 15, 2018. The elections and primaries coincided with the elections and primaries of other federal and state offices.

All five incumbents were re-elected, leaving Oregon at a 4–1 split in favor of the Democrats.

Results of the 2018 United States House of Representatives elections in Oregon by district:

The 1st district is located in northwestern Oregon and stretches from coastal cities of the Astoria and Seaside, to the parts of Portland and the surrounding suburbs such as Beaverton, Hillsboro, and Newberg. This district had a PVI of D+9. The incumbent was Democrat Suzanne Bonamici, who had represented the district since 2012. She was re-elected with 60% of the vote in 2016. She faced Republican nominee John Verbeek in the November 2018 general election.

• Ricky Barajas
• Suzanne Bonamici, incumbent
• Michael Stansfield

• George Griffith, engineer
• Preston Miller
• John Verbeek

Oregon's second district is made up of rural eastern Oregon and stretches into southern Oregon, including Bend, Klamath Falls, and Medford. This was the most Republican district in Oregon, with a PVI of R+11.

The incumbent, Republican Greg Walden of Hood River, was re-nominated in the May 2018 primary election. He had represented the district since 1999, and was re-elected with 72% of the vote in 2016. He had faced little serious opposition in recent years, but in 2018 was heavily criticized by constituents for helping to write a bill to repeal and replace the Affordable Care Act.

Democrat Jamie McLeod-Skinner of Terrebonne won her party's nomination in May 2018. She had criticized Walden for skipping public events and declining to take strong stands on behalf of his constituents. Incumbent Walden agreed in July to debate McLeod-Skinner, but as of early September, no debate had been scheduled.

As of November 2018, national handicappers considered the district "safe Republican."

• Eric Burnette
• Michael Byrne, stonemason
• Jim Crary, attorney
• Raz Mason, teacher
• Jamie McLeod-Skinner, environmental attorney
• Jennifer Neahring, physician
• Timothy White, CFO

• Randy Pollock
• Paul Romero
• Greg Walden, incumbent

This was the closest race ever in Greg Walden's political history, the first time he had received less than 60% of the votes.

The 3rd district is centered around the city of Portland, and includes the surrounding suburbs such as Estacada, Fairview, and Gresham. This was the most Democratic-friendly district in the state, with a PVI of D+24. The incumbent was Democrat Earl Blumenauer, who had represented the district since 1996. He was re-elected with 72% of the vote in 2016. He faced Independent Party nominee Marc Koller and Republican write-in nominee Tom Harrison in the November 2018 general election.

• Earl Blumenauer, incumbent
• Eric Hafner, activist
• Ben Lavine
• Charles Rand Barnett

The 4th district is located in the South Coast region of Oregon. Cities in this district include Coos Bay, Eugene, and Roseburg. This was a highly competitive district, with an even PVI. The incumbent was Democrat Peter DeFazio, who had represented the district since 1987. He was re-elected with 55% of the vote in 2016. He faced Art Robinson for the fifth time; Robinson had been the Republican nominee in the district in every election since 2010.

• Daniel Arcangel
• Peter DeFazio, incumbent

• Court Boice, Curry County commissioner
• Jo Rae Perkins, business owner
• Michael Polen
• Art Robinson, chemist
• Stefan Strek

The 5th district is centered around the state capital, Salem. The district stretches from the Central Coast region to the southern Portland suburbs, including Lake Oswego, Wilsonville, and Oregon City. The district was highly competitive, with an even PVI. The incumbent was Democrat Kurt Schrader, who had represented the district since 2009. He was re-elected with 53% of the vote in 2016. He faced Republican nominee Mark Callahan in the November 2018 general election.

• Kurt Schrader, incumbent
• Peter Wright

• Mark Callahan, perennial candidate
• Joey Nations
• Robert Reynolds

• Candidates at Vote Smart
• Candidates at Ballotpedia
• Campaign finance at FEC
• Campaign finance at OpenSecrets

Official campaign websites for first district candidates

• Suzanne Bonamici (D) for Congress
• John Verbeek (R) for Congress

Official campaign websites for second district candidates

• Jamie McLeod-Skinner (D) for Congress
• Greg Walden (R) for Congress

Official campaign websites for third district candidates

• Earl Blumenauer (D) for Congress
• Marc Koller (I) for Congress

Official campaign websites for fourth district candidates

• Peter DeFazio (D) for Congress
• Art Robinson (R) for Congress

Official campaign websites for fifth district candidates

• Mark Callahan (R) for Congress
• Marvin Sandnes (G) for Congress
• Kurt Schrader (D) for Congress