Last name Томоко (Tomoko 
, Томоко 
, 兼子 ) , around the globe, is quite a rare surname. The family name Томоко is characteristic of Malaysia, where it is a rare surname, Japan, and Singapore. Not in comparison with a country's population, it is the most numerous in China, Japan, and Malaysia. Much more prevalently, Томоко is the forename as well as the last name.