Cognomen สิกขา (Siksa 
, Sikhai 
, สิกขา 
) , worldwide, is a rare family name. The last name สิกขา is habitual in Thailand, where it is a rare surname, India, where it is a very rare surname, and Malaysia. Not in comparison with a country's population, it is the most numerous in India, Thailand, and the United States. Also, สิกขา is the forename as well as the last name.