| Election Name: | 2013 Chambani by-election |
| Country: | Tanzania |
| Type: | by-election |
| Vote Type: | Popular |
| Ongoing: | no |
| Previous Election: | 2010 Tanzanian general election |
| Previous Year: | 2010 |
| Next Election: | Tanzanian general election, 2015 |
| Next Year: | 2015 |
| Seats For Election: | The Chambani constituency in the Tanzanian Parliament |
| Turnout: | 3,255 (67.34%) |
| Colour1: | 00BFFF |
| Candidate1: | Yussuf Salim Hussein |
| Party1: | Civic United Front |
| Popular Vote1: | 2,708 |
| Percentage1: | 83.68 |
| Candidate2: | Mathari Saharani |
| Party2: | Chama Cha Mapinduzi |
| Popular Vote2: | 402 |
| Percentage2: | 12.42 |
| MP | |
| Before Election: | Salim Khamis |
| Before Party: | Civic United Front |
| After Election: | Yussuf Salim Hussein |
| After Party: | Civic United Front |
The Chambani by-election was a by-election held for the Tanzanian parliamentary constituency of Chambani. It was triggered by the death of Salim Khamis, the previous Member of Parliament (MP) who had held the seat for the Civic United Front (CUF) since 2010.[1] The by-election took place on 16 June 2013 and the CUF candidate won by a landslide.[2]