Facundo Javier Perez Castro (born August 7 1981, in San Miguel de Tucuman, Tucuman Province is an Argentine football midfielder currently playing for Gimnasia y Esgrima de Jujuy.
Perez Castro came through Argentinos Juniors' youth system to make his debut for the club in 1999. He played for the club until 2007, in 2002 the club were relegated to the Primera B Nacional but Perez Castro stayed with them and helped them to secure promotion back to the Primera Division in 2004.
Perez Castro moved to Gimnasia for the start of Apertura 2007 tournament.