Juan Alberto Barbas (born 23 August 1959 in San Martín, Buenos Aires) is a retired Argentine football defensive midfielder, He played for a number of clubs in Argentina, Spain, Italy and Switzerland before turning his hand to management in 2009 with Racing Club de Avellaneda.
Barbas started his career in 1977 at Racing Club de Avellaneda in the Primera Division Argentina. He then went on to play for Real Zaragoza in Spain, U.S. Lecce in Italy, FC Locarno and FC Sion in Switzerland.
Barbas was a part of the Sion team that won the 1991–1992 Swiss Championship.
After another spell at Locarno Barbas returned to Argentina where he had a short spell with Club Atlético Huracán before dropping down to the lower leagues to play for Alvarado de Mar del Plata and then All Boys where he retired in 1997.
Barbas was part of the Argentina Under-20 squad that won the 1979 FIFA World Youth Championship, he went on to play for Argentina 33 times including appearances at the 1982 FIFA World Cup.
On 13 October 2009 Racing Club de Avellaneda officials hired their former player as their caretaker coach, replacing Ricardo Caruso Lombardi.