Juan Castilla

Juan Castilla may refer to:


 * Juan de Castilla y Haro (died 1326), Spanish nobleman
 * Juan de Castilla (1460–1520), Spanish prelate
 * Juan Carlos Castilla (marine biologist) (born 1940), Chilean marine biologist
 * Juan José Castilla (born 1945), Mexican heptathlete
 * Juan Carlos Castilla (footballer) (born 1978), Spanish football goalkeeper
 * Juan Castilla (footballer) (born 2004), Colombian football midfielder