| Country: | Brazil |
| Type: | presidential |
| Election Date: | 1 March 1910 |
| Previous Election: | 1906 Brazilian presidential election |
| Previous Year: | 1906 |
| Next Election: | 1914 Brazilian presidential election |
| Next Year: | 1914 |
| Image1: | DA FONSECA, HERMES, OF BRAZIL LCCN2016865152 (Cropped).jpg |
| Nominee1: | Hermes da Fonseca |
| Party1: | Conservative Republican Party |
| Popular Vote1: | 403,867 |
| Percentage1: | 57.07% |
| Nominee2: | Ruy Barbosa |
| Party2: | Paulista Republican Party |
| Popular Vote2: | 222,822 |
| Percentage2: | 31.49% |
| President | |
| Before Election: | Nilo Peçanha |
| Before Party: | Fluminense Republican Party |
| After Election: | Hermes da Fonseca |
| After Party: | Conservative Republican Party |
Presidential elections were held in Brazil on 1 March 1910.[1] The result was a victory for Hermes da Fonseca, who received 57.1% of the vote. Fonseca was supported by several of the most influential Republican parties, whilst his main opponent Ruy Barbosa was supported by the Civilist Campaign, a movement opposed to da Fonseca.[2] After the election da Fonseca was also supported by the Conservative Republican Party.[2]