Last name 里子 (Satoko 
, 里子 ) , across the world, is a rare family name. The family name 里子 is habitual in Singapore, where it is a rare surname, Japan, and Hungary, where it is a very rare surname. Not in comparison with a country's population, it is commonest in China, Japan, and Indonesia. Much more frequently, 里子 is the forename as well as the last name.