Casto

Casto may refer to:

== People == === Given name === Casto (footballer) (born 1982), Spanish footballer Casto Innocenzio Ansaldi (1710–1780), Italian professor, theologian and archaeologist Casto Méndez Núñez (1824–1869), Spanish naval officer Casto Nopo, Equatoguinean football manager Casto Plasencia (1846–1890), Spanish painter