Family name Kosida (Kosida 
, 越田 
) , across the world, is a very rare cognomen. The last name Kosida is habitual in Indonesia, where it is a very rare surname, China, where it is an extremely rare surname, and the United States. Measured by absolute frequency, the name is most common in Indonesia, China, and India. More frequently, Kosida is the forename as well as the last name.