1976 United States Senate election in California

The 1976 United States Senate election in California took place on November 2, 1976. Incumbent Democratic U.S. Senator John V. Tunney ran for re-election to a second term, but was defeated by Republican S. I. Hayakawa. As of 2023, this is the last time an incumbent Democratic Senator from California lost re-election.

Primary elections were held on June 8. Tunney survived a challenge from anti-war activist Tom Hayden, the husband of Jane Fonda. Hayakawa, a novice campaigner, won a surprise victory over seasoned political figures Robert H. Finch, Alphonzo Bell Jr., and John L. Harmer.

Candidates

 * Lois T. Bodle
 * Leslie W. "Les" Craven, nominee for U.S. Representative in California's 25th congressional district in 1970 and 1972
 * Howard L. Gifford, candidate for U.S. Senate in 1974
 * Tom Hayden, anti-war activist and husband of Jane Fonda
 * Millard F. Slover
 * Frank L. Thomas
 * John V. Tunney, incumbent U.S Senator
 * Bob Wallach
 * Ronald L. Williams

Results
[[File: 1976 United States Senate election in California, Democratic primary.svg|thumb|Results by county: Tunney

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{{legend|#6674de|60–70%}} Hayden

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 * center]]

Candidates

 * Alphonzo E. Bell Jr., U.S. Representative from Santa Monica
 * Hannibal C. Burchette V
 * Robert H. Finch, former Lieutenant Governor of California, United States Secretary of Health, Education, and Welfare, and advisor to President Richard Nixon
 * John L. Harmer, former Lieutenant Governor and State Senator
 * S. I. Hayakawa, professor of semantics and president emeritus of San Francisco State University
 * Henry Hill
 * Michael A. Hirt
 * Walter Hollywood
 * Clyde F. Tracy
 * James A. Ware, perennial candidate

Results
[[File: 1976 United States Senate election in California, Republican primary.svg|thumb|Results by county: Hayakawa

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{{legend|#ffc8cd|30–40%}}

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{{legend|#e27f7f|50–60%}} Finch

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{{legend|#ffb580|40–50%}}
 * center]]