Surname Katnika (Katnika 
) , throughout the world, is an extremely rare last name. The cognomen Katnika is characteristic of Southern Asia, particularly India, where it is an extremely rare surname. More prevalently, Katnika is the forename as well as the last name.
Juntip, Samatkit, Srivilai, Sirijanya, Kaewrakmuk, and Suwannachart