| Election Name: | 1990 San Jose mayoral election |
| Flag Image: | Flag of San José, California.svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1986 San Jose mayoral election |
| Previous Year: | 1986 |
| Next Election: | 1994 San Jose mayoral election |
| Next Year: | 1994 |
| Election Date: | June 5, 1990 (first round) November 3, 1990 (runoff) |
| Turnout: | 37.09% (first round) 52.17% (runoff) |
| 1Blank: | First-round vote |
| 2Blank: | First-round percentage |
| 3Blank: | Second-round vote |
| 4Blank: | Second-round percentage |
| Candidate1: | Susan Hammer |
| Party1: | Democratic Party (United States) |
| 1Data1: | 34,822 |
| 2Data1: | 28.89% |
| 3Data1: | 89,399 |
| 4Data1: | 50.38% |
| Candidate2: | Frank Fiscalini |
| Party2: | Nonpartisan candidate |
| 1Data2: | 39,833 |
| 2Data2: | 33.04% |
| 3Data2: | 88,016 |
| 4Data2: | 49.61% |
| Candidate4: | Shirley Lewis |
| Party4: | Nonpartisan candidate |
| 1Data4: | 29,049 |
| 2Data4: | 24.10% |
| Image5: | 3x4.svg |
| Candidate5: | Don Houston |
| Party5: | Nonpartisan candidate |
| 1Data5: | 9,444 |
| 2Data5: | 7.84% |
| Mayor | |
| Before Election: | Tom McEnery |
| Before Party: | Democratic Party (United States) |
| After Election: | Susan Hammer |
| After Party: | Democratic Party (United States) |
The 1990 San Jose mayoral election was held to elect the mayor of San Jose, California. It saw an initial election held on June 5, 1990, followed by a runoff election on November 3, 1990 after no candidate managed to obtain a majority in the initial election. The runoff was won by Susan Hammer.
Incumbent mayor Tom McEnery was term limited.