Ismael Ignacio Fuentes Castro (born 4 August 1981) is a Chilean former footballer who played as centre back.
Fuentes made his debut with Deportes Linares in the Primera B de Chile and then he moved to Rangers in 2001.
Fuentes represented Chile at under-20 level in the 2001 South American Championship. At senior level, he made 30 appearances and scored one goal between 2004 and 2010.
Fuentes was elected a member of the Regional Council of Maule for the Linares Province in the 2024 Chilean regional elections supported by Independent Democratic Union.
In June 2025, Fuentes joined the Rodeo club Talca Norte to compete in the Asociación Talca Oriente.