In all the world, Isto (Isto 
, Исто, Istud) is a rare epicene given name. The forename Isto is habitual in Finland, where it is a rare male name, Qatar, where it is a rare female name, and Israel, where it is a rare gender-neutral name. Measured by absolute frequency, it is commonest in Indonesia, India, and Finland. Also, Isto is the last name as well as the forename.