General elections were held in Uruguay on 27 November 1966, alongside a constitutional referendum.[1] The result was a victory for the Colorado Party, which won the most seats in the Chamber of Deputies and received the most votes in the presidential election.
![](//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Elecciones_generales_de_Uruguay_de_1966_%28Representantes%29.svg/300px-Elecciones_generales_de_Uruguay_de_1966_%28Representantes%29.svg.png) ![](//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Elecciones_generales_de_Uruguay_de_1966_%28Senado%29.svg/300px-Elecciones_generales_de_Uruguay_de_1966_%28Senado%29.svg.png) |
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Party | Presidential candidate | Votes | % | Seats |
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Chamber | +/– | Senate | +/– |
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| Colorado Party | Óscar Diego Gestido | 262,040 | 21.27 | 50 | +6 | 16 | +2 |
Jorge Batlle Ibáñez | 215,642 | 17.51 |
Amílcar Vasconcellos | 77,476 | 6.29 |
Zelmar Michelini | 48,022 | 3.90 |
Justino Jiménez de Aréchaga | 4,064 | 0.33 |
al lema | 389 | 0.03 |
Total | 607,633 | 49.33 |
| National Party | Martín Echegoyen | 228,309 | 18.54 | 41 | –6 | 13 | –2 |
Alberto Gallinal Heber | 171,618 | 13.93 |
Alberto Héber Usher | 96,772 | 7.86 |
al lema | 211 | 0.02 |
Total | 496,910 | 40.34 |
| Liberation Left Front | Aguirre González | 69,750 | 5.66 | 5 | +2 | 1 | 0 |
| Christian Democratic Party | Adolfo Gelsi Bidart | 37,219 | 3.02 | 3 | 0 | 0 | –1 |
| Socialist Party | José Pedro Cardoso | 7,892 | 0.64 | 0 | New | 0 | New |
Emilio Frugoni | 3,646 | 0.30 |
al lema | 21 | 0.00 |
Total | 11,559 | 0.94 |
| Christian Civic Movement | Juan Vicente Chiarino | 4,230 | 0.34 | 0 | New | 0 | New |
| Popular Union | Enrique Erro | 2,655 | 0.22 | 0 | –2 | 0 | 0 |
| Agrarian and Workers' Party | Moizzo | 1,616 | 0.13 | 0 | New | 0 | New |
| Liberal Party | Grassi | 74 | 0.01 | 0 | New | 0 | New |
| Federal Party | Sanjurjo | 72 | 0.01 | 0 | 0 | 0 | 0 |
| Party for Solís Department | Fioroni | 44 | 0.00 | 0 | 0 | 0 | 0 |
Total | 1,231,762 | 100.00 | 99 | 0 | 30 | –1 |
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Registered voters/turnout | 1,658,368 | – | |
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Source: Electoral Court |