1859 Argentine Presidential Election
5, 6 and 7 September 1859 · The oligarchic republic
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An indirect electoral-college contest of the oligarchic republic: voting was public, participation tiny, and the outcome largely arranged by the ruling circle.
President before
Justo José de Urquiza
Federalist
Elected President
Santiago Derqui
Federalist
Winning share
57.6%
Turnout
—
The result
| Santiago Derqui | Federalist Party | 72 | 57.60% |
| Mariano Fragueiro | Unitarian Party | 46 | 36.80% |
| Salvador María del Carril | Unitarian Party | 4 | 3.20% |
| Juan Bautista Alberdi | Independent | 2 | 1.60% |
| Tomás Guido | Independent | 1 | 0.80% |