Cognomen Ohshiba (Ру 
, Ohshiba 
, 大柴) , all around the world, is a rare last name. The last name Ohshiba is characteristic of Kyrgyzstan, where it is a very rare surname, Russia, and Ukraine. Not in comparison with a country's population, it is the most numerous in Russia, Ukraine, and Kazakhstan. Also, Ohshiba is the forename as well as the last name.