| Country: | Victoria |
| Type: | parliamentary |
| Ongoing: | no |
| Election Date: | 11 May 1991 |
| Candidate1: | Kevin Andrews |
| Party1: | Liberal Party of Australia |
| Popular Vote1: | 40,154 |
| Percentage1: | 67.7% |
| Swing1: | 9.3 |
| Party2: | Australian Democrats |
| Popular Vote2: | 13,070 |
| Percentage2: | 22.0% |
| Swing2: | 10.4 |
| 1Blank: | TPP |
| 2Blank: | TPP swing |
| 1Data1: | 72.0% |
| 2Data1: | 7.7 |
| 1Data2: | 28.0% |
| 2Data2: | 28.0 |
| MP | |
| Before Election: | Neil Brown |
| Before Party: | Liberal Party of Australia |
| After Election: | Kevin Andrews |
| After Party: | Liberal Party of Australia |
The 1991 Menzies by-election was held in the Australian electorate of Menzies in Victoria on 11 May 1991. The by-election was triggered by the resignation of the sitting member, the former deputy Liberal Party leader Neil Brown.
The Australian Labor Party did not field a candidate. The by-election was won by the Liberal Party's Kevin Andrews.