Cognomen Sunha (Sunha 
, 선하 , ซุ่นฮะ) , in the entire world, is a rare family name. The cognomen Sunha is characteristic of Tanzania, where it is a rare surname, Malaysia, where it is an extremely rare surname, and Thailand. Measured by absolute frequency, it is commonest in Tanzania, India, and China. More frequently, Sunha is the forename as well as the last name.