John Jairo Castillo (born 20 April 1984) is a Colombian former footballer who played as a striker.
Castillo's first name is sometimes spelled Jhon and his nickname is "Tigrillo".
He signed with Everton in January 2008 on a long-team contract. He has played for numerous Colombian teams such as Deportes Tolima in the Copa Mustang and also for Bolivian club Oriente Petrolero and for Venezuelan club Guaros.