| Election Name: | 1954 United States Senate special election in California |
| Country: | California |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1950 United States Senate election in California |
| Previous Year: | 1950 |
| Next Election: | 1956 United States Senate election in California |
| Next Year: | 1956 |
| Election Date: | November 2, 1954 |
| Image1: | Thomas Kuchel.jpg |
| Nominee1: | Thomas Kuchel |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 2,090,836 |
| Percentage1: | 53.21% |
| Nominee2: | Sam Yorty |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 1,788,071 |
| Percentage2: | 45.50% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Thomas Kuchel |
| Before Party: | Republican Party (United States) |
| After Election: | Thomas Kuchel |
| After Party: | Republican Party (United States) |
The 1954 United States Senate special election in California was held on November 2, 1954, to elect a U.S. Senator to complete the unexpired term of Senator Richard Nixon, who resigned on becoming Vice President of the United States following the 1952 presidential election. Incumbent Republican U.S. Senator Thomas Kuchel, who had been appointed by Governor Earl Warren, won election to the remainder of the term, defeating Democratic nominee Sam Yorty.
Primary elections were held on June 8, 1954.