1978 United States House of Representatives elections in California

The United States House of Representatives elections in California, 1978 was an election for California's delegation to the United States House of Representatives, which occurred as part of the general election of the House of Representatives on November 7, 1978. Republicans knocked off three Democratic incumbents. 11th district Congressman Leo Ryan was re-elected, but was murdered while investigating the Peoples Temple in Guyana following the election.

Results
Final results from the Clerk of the House of Representatives: