Family name 土本 (Domoto 
, 土本 , Tsuchimoto 
) , in the world, is a rare cognomen. The last name 土本 is characteristic of Singapore, where it is a rare surname, Japan, where it is a very rare surname, and the United States. Not in comparison with a country's population, it is the most numerous in the United States, Japan, and Brazil. More frequently, 土本 is the forename as well as the last name.