Candidates (O)

Robert C. Oliver

• 1948 – Indiana’s 10th congressional district (D) – lost

William Bacon Oliver

• 1920 – Alabama’s 6th congressional district (D) – won
• 1922 – Alabama’s 6th congressional district (D) – won
• 1924 – Alabama’s 6th congressional district (D) – won
• 1926 – Alabama’s 6th congressional district (D) – won
• 1928 – Alabama’s 6th congressional district (D) – won
• 1930 – Alabama’s 6th congressional district (D) – won
• 1932 – Alabama’s 6th congressional district (D) – won
• 1934 – Alabama’s 6th congressional district (D) – won

Pablo Olivera

• 2012 – New Jersey’s 8th congressional district (Unity Is Strength) – lost
• 2013 – United States Senate (New Jersey) (Special) (I) – lost
• 2014 – New Jersey’s 8th congressional district (Wake Up USA) – lost
• 2016 – New Jersey’s 8th congressional district (Wake Up America) – lost
• 2022 – New Jersey’s 8th congressional district (I) – lost

Michael Angelo Oliverio, II

• 2010 – West Virginia’s 1st congressional district (D) – lost

Ed Oliveros

• 2002 – Ohio’s 13th congressional district (R) – lost

Christine Olivo

• 2022 – Florida’s 26th congressional district (D) – lost

Leon A. Ollen

• 1932 – New Jersey’s 1st congressional district (Comm.) – lost

Richard Olney

• 1920 – Massachusetts’ 14th congressional district (D) – lost

Archibald Ernest Olpp

• 1920 – New Jersey’s 11th congressional district (R) – won
• 1922 – New Jersey’s 11th congressional district (R) – lost

Arnold Olsen

• 1960 – Montana’s 1st congressional district (D) – won
• 1962 – Montana’s 1st congressional district (D) – won
• 1964 – Montana’s 1st congressional district (D) – won
• 1966 – Montana’s 1st congressional district (D) – won
• 1968 – Montana’s 1st congressional district (D) – won
• 1970 – Montana’s 1st congressional district (D) – lost
• 1972 – Montana’s 1st congressional district (D) – lost

Carl Eric Olsen

• 1992 – United States Senate (Iowa) (Grass Roots) – lost
• 1996 – Iowa’s 4th congressional district (L) – lost

Duane F. Olsen

• 1968 – United States Senate (Kentucky) (AI) – lost

Erik Olsen

• 2022 – Wisconsin’s 2nd congressional district (R) – lost

John D. Olsen

• 1968 – Hawaii’s at large congressional district (PF) – lost

John E. Olsen

• 1976 – Michigan’s 18th congressional district (R) – lost

Kirsten Olsen

• 1978 – California’s 12th congressional district (D) – lost
• 1980 – California’s 12th congressional district (D) – lost

Lawrence Wayne Olsen

• 1990 – New Jersey’s 5th congressional district (D) – lost

Marty Olsen

• 2018 – Tennessee’s 1st congressional district (D) – lost

Norman E. Olsen

• 2002 – Colorado’s 2nd congressional district (L) – lost
• 2004 – Colorado’s 2nd congressional district (L) – lost
• 2006 – Colorado’s 2nd congressional district (L) – lost
• 2014 – Colorado’s 6th congressional district (L) – lost
• 2016 – Colorado’s 6th congressional district (L) – lost
• 2020 – Colorado’s 6th congressional district (L) – lost

Randall Wayne Olsen

• 2014 – Illinois’ 16th congressional district (D) – lost

Steven Olsen

• 2006 – Utah’s 1st congressional district (D) – lost

Henry John Olshaw

• 1962 – United States Senate (Colorado) (I) – lost
• 1970 – Colorado’s 3rd congressional district (I) – lost
• 1972 – United States Senate (Colorado) (American) – lost
• 1974 – United States Senate (Colorado) (American) – lost
• 1976 – Colorado’s 3rd congressional district (American) – lost
• 1978 – Colorado’s 3rd congressional district (I) – lost
• 1980 – United States Senate (Colorado) (Unaff-Am.) – lost
• 1982 – Colorado’s 3rd congressional district (I) – lost
• 1984 – Colorado’s 3rd congressional district (Unaffiliated-American) – lost
• 1986 – United States Senate (Colorado) (Unaffiliated American) – lost

Alec Gehard Olson

• 1962 – Minnesota’s 6th congressional district (DFL) – won
• 1964 – Minnesota’s 6th congressional district (DFL) – won
• 1966 – Minnesota’s 6th congressional district (DFL) – lost

Andrew Olson

• 1920 – Illinois’ 14th congressional district (D) – lost

Ben L. Olson

• 1978 – United States Senate (Iowa) (L) – lost
• 2000 – Iowa’s 5th congressional district (L) – lost

Bill Olson

• 2020 – Florida’s 9th congressional district (R) – lost

Bob Olson

• 1994 – Minnesota’s 3rd congressional district (DFL) – lost

Chuck Olson

• 1982 – California’s 11th congressional district (L) – lost
• 1990 – California’s 12th congressional district (L) – lost
• 1992 – California’s 14th congressional district (L) – lost

Curtiss T. Olson

• 1950 – Minnesota’s 9th congressional district (DFL) – lost
• 1952 – Minnesota’s 9th congressional district (DFL) – lost

Dave Olson

• 2006 – Idaho’s 1st congressional district (I) – lost
• 2010 – Idaho’s 1st congressional district (I) – lost

Dawn Olson

• 1962 – Washington’s 6th congressional district (D) – lost

Edward Olson

• 1982 – Texas’ 12th congressional district (L) – lost

Elmer Olson

• 1948 – New York’s 45th congressional district (Liberal) – lost
• 1950 – New York’s 45th congressional district (Liberal) – lost
• 1960 – New York’s 43rd congressional district (Liberal) – lost

Eric Olson

• 2012 – North Dakota’s at large congressional district (L) – lost

Ernest Thor Olson

• 1948 – Washington’s 6th congressional district (Prog.) – lost

Harriet Smith Olson

• 1926 – Wisconsin’s 11th congressional district (Proh.) – lost

James E. Olson

• 1950 – United States Senate (Kentucky) (I) – lost

Jeff Olson

• 2020 – Florida’s 23rd congressional district (IR-W/I) – lost

John Olson

• 2012 – Oklahoma’s 1st congressional district (D) – lost

Judy Olson

• 1996 – Washington’s 5th congressional district (D) – lost

Lawrence H. Olson

• 1972 – Michigan’s 9th congressional district (D) – lost

Leslie O. Olson

• 1968 – Missouri’s 4th congressional district (R) – lost
• 1970 – Missouri’s 4th congressional district (R) – lost

Louis Olson

• 1934 – Oregon’s 3rd congressional district (I) – lost

O. Martin Olson

• 1932 – New York’s at large congressional district (SL) – lost
• 1938 – United States Senate (New York) (Industrial Government) – lost

Ole H. Olson

• 1920 – North Dakota’s 2nd congressional district (NPL) – lost

Peter Graham Olson

• 2008 – Texas’ 22nd congressional district (R) – won
• 2010 – Texas’ 22nd congressional district (R) – won
• 2012 – Texas’ 22nd congressional district (R) – won
• 2014 – Texas’ 22nd congressional district (R) – won
• 2016 – Texas’ 22nd congressional district (R) – won
• 2018 – Texas’ 22nd congressional district (R) – won

Robert C. Olson, Jr.

• 1954 – Minnesota’s 1st congressional district (DFL) – lost
• 1976 – Minnesota’s 1st congressional district (DFL) – lost

Timothy Olson

• 2010 – Minnesota’s 8th congressional district (IND) – lost

Virgil Leon Olson

• 1976 – Kansas’ 5th congressional district (D) – lost

W. Thomas La Fontaine Olson

• 2022 – United States Senate (Louisiana) (I) – lost