The Valdostan regional election of 1978 took place on 25 June 1978.
The council was divided in a dozen of parties, with consequent political instability under the leadership of the Valdostan Union.
Results Party votes votes (%) seats Valdostan Union18,31824.89 Christian Democracy15,72321.27 Italian Communist Party14,44219.56 Popular Democrats8,70211.84 Italian Socialist Party2,6483.61 Progressive Valdostan Union2,3163.11 Socialist Autonomy1,9602.71 Italian Democratic Socialist Party1,5432.11 Proletarian Democracy1,4542.01 Italian Republican Party1,3951.91 Italian Liberal Party1,3181.81 Valdostan Craftsmen and Traders1,1181.51 Radical Party9761.3- Italian Social Movement9491.3- Others81,1531.6-Total74,015100.035 Sources: Regional Council of Aosta Valley and Istituto Cattaneo