Cognomen 贝塔 (贝塔 
, Beytagh 
) , all over the world, is a very rare surname. The surname 贝塔 is habitual in Australia, where it is a very rare surname, the United States, where it is an extremely rare surname, and Canada. In absolute terms, it is commonest in the United States, China, and Australia. Likewise, 贝塔 is the forename as well as the last name.