Cognomen Ojh (Ojh 
) , in all the world, is a rare family name. The cognomen Ojh is habitual in Taiwan, where it is a rare surname, India, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in India, Taiwan, and China. Much less frequently, Ojh is the forename as well as the last name.