Roberto Aballay (born 22 November 1922 in Buenos Aires) is an Argentine former football (soccer) player in striker role.
Started his career in 1940 for River Plate, Banfield and San Lorenzo de Almagro. He played also in Mexico for Asturias winning the championship title in the 1943-44 season, he was also the league's top goalscorer with 40 goals in 24 games. He was awarded the 1945 CONCACAF player of the year award for 1945
In Italy for Genoa in season 1949-50 (played 29 matches and scored 3 goals) and in France where closed career in 1950s with FC Nancy, Metz and MC Alger in Algeria.