Family name Carto (Carto 
, カート 
, Карто 
) , in the entire world, is a rare last name. The family name Carto is characteristic of Guyana, where it is quite a rare surname, Portugal, where it is a rare surname, and Indonesia, where it is a very rare surname. Measured by absolute frequency, it is commonest in Indonesia, the United States, and Japan. Also, Carto is the forename as well as the last name.