1986 United States Senate election in California

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1986 United States Senate election in California
	County results ; Cranston: 40-50% 50–60% 60–70% 70–80% ; Zschau: 40–50% 50–60% 60–70%
U.S. senator before election; Alan Cranston; Democratic	Elected U.S. Senator ; Alan Cranston; Democratic

The 1986 United States Senate election in California took place on November 4, 1986. Incumbent Democratic U.S. Senator Alan Cranston narrowly won re-election to a fourth and final term over Republican U.S. Congressman Ed Zschau. This was the last time where both major party nominees for the Class 3 Senate seat in California were men until 2022.