Last name Симомура (Shimomura 
, 下村 , Симомура 
) , all around the world, is quite a rare family name. The surname Симомура is habitual in Jamaica, where it is a rare surname, Singapore, and Japan. In absolute terms, it is commonest in the United States, Japan, and Brazil. Likewise, Симомура is the forename as well as the last name.