| Country: | New South Wales |
| Type: | parliamentary |
| Ongoing: | no |
| Election Date: | 26 March 1994 |
| Candidate1: | Bronwyn Bishop |
| Party1: | Liberal Party of Australia |
| Popular Vote1: | 34,999 |
| Percentage1: | 53.25% |
| Swing1: | 4.36 |
| Candidate2: | Bob Ellis |
| Party2: | Independent politician |
| Popular Vote2: | 15,501 |
| Percentage2: | 23.14% |
| Swing2: | 23.14 |
| 1Blank: | TPP |
| 2Blank: | TPP swing |
| 1Data1: | 60.27% |
| 2Data1: | 0.89 |
| 1Data2: | 39.73% |
| 2Data2: | 39.73 |
| MP | |
| Before Election: | Jim Carlton |
| Before Party: | Liberal Party of Australia |
| After Election: | Bronwyn Bishop |
| After Party: | Liberal Party of Australia |
The 1994 Mackellar by-election was held in the Australian electorate of Mackellar in New South Wales on 26 March 1994. The by-election was triggered by the resignation of the sitting member, the Liberal Party of Australia's Jim Carlton on 14 January 1994. The writ for the by-election was issued on 18 February 1994. On the same day a by-election was held in Warringah.
The Australian Labor Party did not stand a candidate for the by-election. The main opposition for the seat was writer/journalist, film-maker, Labor supporter and political commentator Bob Ellis, who stood as an independent.
During the by-elections in Mackellar and Warringah the Maverick Far Right Labor MP Graeme Campbell (politician) urged electors to vote for Australians Against Further Immigration (AAFI).[1]
The by-election was won by the Liberal Party's Bronwyn Bishop.[2]