1966 Campeonato Argentino de Rugby

Il 1966 Campeonato Argentino de Rugby  was won by selection of Buenos Aires beating in the final the selection of Tucumán

That year in Argentina rugby union

 * The Buenos Aires Championship was won by Belgrano AC
 * The Cordoba Province Championship was won by La Tablada
 * The North-East Championship was won by Los Tarcos
 * The "Unión de Rugby del Norte" take definitely the name of Unión de Rugby de Tucumán
 * The "Gazelles", Under-23 South African selection visit Argentina

Semifinals
Tucuman: C. Ponce, G. Casanova, H. Barbero, A. Alonso, N. Antoni, W. Rumboll, J. Frías Silva, J. Paz, J. Ghirin¬ghelli, J. C. Ghiringhelli, J. Lomáscolo, S. Bellomio, S. Poujade, R. Roldán, M. Gasparre. Rosario J. Seaton, E. España, G. Escobar, J. Scilabra, J. Bresciaroli, J. Caballero, C. Cristi, M. Chesta, R. Seaton, R. Esmendi, M. Bouza, L. Belizan, M. Pavón, J. Costante, J. Imhoff.

Cordoba D. Morgán, C. Cornille, A. Pagano, M. Pascual, E. Neri, R. Cazenave, A. Etchegaray, R. Loyola, E. Elowson, G. Plesky, B. Otaño, L. García Yáñez, G. Me Cormick, R. Handley, R. Foster. Buenos Aires F. Mezquida, R. Mule, J. Mancini, E. Quetglas, L. Rodríguez, C. Feretti, J. Del Valle, P. Demo, J. Masjoan, J. Ramírez, E. Cornella, J. Imasi, J. Coceo, C. Félix, G. Ribeca.

Final
Tucumàn: C. Ponce, G. Casanova, R. Cuello, A. Alonso, N. Antoni, F. Burgos, J. Frías Silva, J. Paz, J. Ghiringhelli, J. C. Ghiringhelli, E. Bellomio, H. Roldán, S. Poujade, R. Roldán, F. Bach. Buenos Aires : D. Morgan, E. Neri, M. Pascual, A Pagano, C. Cornille, R. Cazenave, L. Gradín, L. García Yáñez, N. González del Solar, G. Me Cormick, B. Otaño, A. Anthony, A. Dunn, G. Plesky, R. Loyola.