Cognomen Saena (Saena 
, แซนะ , แสนะ ) , throughout the world, is quite a rare surname. The cognomen Saena is habitual in Thailand, where it is a rare surname, New Zealand, and Indonesia. Not in comparison with a country's population, it most frequently occurs in Indonesia, Thailand, and the United States. Likewise, Saena is the forename as well as the last name.