United States House of Representatives elections, 1888 California California

| District | Incumbent | Party | First_elected | Result_ |
|---|---|---|---|---|
| California 1 | Thomas Larkin Thompson | Democratic | 1886 | Lost re-election Republican gain |
| California 2 | Marion Biggs | Democratic | 1886 | Re-elected |
| California 3 | Joseph McKenna | Republican | 1884 | Re-elected |
| California 4 | William W. Morrow | Republican | 1884 | Re-elected |
| California 5 | Charles N. Felton | Republican | 1884 | Retired Democratic gain |
| California 6 | William Vandever | Republican | 1886 | Retired Republican hold |