Gerardo Fabián Barbero (21 August 1961 – 4 March 2001) was an Argentine chess grandmaster.

He was born in Lanús, Buenos Aires, and raised in Rosario, Santa Fe.

[2] He was Argentine champion in 1984[3] and played on board one for the Chess Olympiad team in 1990.

[1] In 1986 he moved to Budapest, Hungary, where he married Dr. Katalin Marietta Molnár and had a son, János Américo Barbero.

In Hungary, he developed a friendship with Bobby Fischer, who, according to GM Eugenio Torre, "liked Barbero".