1978 Campeonato Argentino de Rugby

The Campeonato Argentino de Rugby 1978 was won by the selection of Buenos Aires that beat in the final the selection of Unión de Rugby de Rosario

National

 * The selection of Buenos Aires won also the "Campeonato Juvenil" (under-19)
 * The Buenos Aires Championship was won by San Isidro Club
 * The Cordoba Province Championship was won by La Tablada
 * The North-East Championship was won by Tucumán RC

International

 * 1978 is an important year for Argentine rugby : the "Pumas" made a tour in Europe. They obtain an historical draw with England, beat Wales "B" and Leinster. But in the end they lost surprising with Italy

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

 Rosario: 15.D. Baetti (M. Dip), 14.A. Nogués, 13.R. Rodríguez, 12.G. Torno, 11.C. Bisio, 10.J. Escalante, 9.R. Castagna, 8.D. Poet, 7.R. Seaton, 6. Risler (cap.), 5. C. Svetaz, 4.G. Sinópoli, 3. F. Semino (F. Rodríguez), 2. V. Macat, 1. R. Imhoff, Buenos Aires: 15.M. Sanzot, 14.M. Campo, 13.R. Madero, 12.J. Trueco, 11.A. Puccio, 10.H. Porta (cap.), 9. R. Landajo, 8.T. Petersen, 7.C. Serrano, 6.H. Silva, 5.S. Iachetti, 4.G. Travaglini, 3.H. Nicola, 2.A. Cubelli, 1.A. Cerioni.