Surname Gethi (Gethi 
) , across the world, is quite a rare family name. The cognomen Gethi is habitual in Kenya, where it is quite a rare surname, Romania, where it is a rare surname, and Tanzania, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Kenya, Romania, and India. Much less frequently, Gethi is the forename as well as the last name.