1977 Campeonato Argentino de Rugby

The Campeonato Argentino de Rugby 1977 was won by the selection of the U.R.B.A. (Buenos Aires) that beat in the final the selection of Unión de Rugby de Rosario

National

 * The Buenos Aires Championship was won by San Isidro Club
 * The Cordoba Province Championship was won by Universitario
 * The North-East Championship was won by Lawn Tennis and Tucumán RC

International

 * In June came in Argentina the France national rugby union team for a seven matches tour with two test matches with "Pumas" . A victory for French and a Drew the results.

Semifinals
'''Score system: Try= 4 points, Conversion=2 points. Penalty and kick from mark= 3 points. Drop= 3 points. '''

Cuyo: R. Muñiz, O. Morales, O. Terranova, E. Terranova, G. Morgan, P. Guarrochena, Chacón, J. Nasazzi, G. Antonini, J. Navessi (cap.), A. Cattáneo, E. Casale, R. Irañeta, Cichitti, González. Rosario: D. Baetti, A. Nogués, H. Romero Acuña, E. Bracalenti, D. Giner, M. Dip, R. Castagna, V. Macat, R. Seaton, R. Imhoff, M. Chesta, G. Sinópoli, P. Sandionigi, J. Costante (cap.), E.Pavani

 Noreste : C. Palmetler, R. Molina, D. Romero, R. Taborda, M. González, C. Salvi, J. Pérez González (capt.), E. Giménez, J. Domínguez, J. Feliciani, L. Colignon, M. Abraham, D. D'Elía, D. Feuerman, M. Freschi. Buenos Aires M. Alonso, A. Cappelletti, J. Trucco, G. Beccar Varela, J. Gauweloose, J. Capalbo, M. Devoto, F. Bustillo, M. Correa, A. Voltán,  R. Sanz, J. Fernández (capt.), D. Chimondegui, R. Mastai, H. Mazzini.

Final
 Rosario: D. Baetti, A. Nogués, F. Bracalenti, H. Romero Acuña, D. Giner, M. Dip, R. Castagna, V. Macat, R. Seaton, R. lmhoff, M. Chesta, C. Suetaz, D. Poet, J. Costante (cap.), E. Pavani. Buenos Aires: M. Alonso, G. Alvarez, L. Balfour, A. Cappelletti, J. Gauweloose, G. Beccar Varela, R. Landajo, R. Sanz, H. Mazzini, R. Mastai, J. Fernández (capt.), S. lachetti, R. Ventura, J. Braceras, F. Bustillo.