Cognomen Baiken (Байкен 
, Baiken 
) , around the world, is a very rare last name. The surname Baiken is habitual in Kazakhstan, where it is a rare surname, Kyrgyzstan, where it is a very rare surname, and Honduras. Measured by absolute frequency, it is commonest in Kazakhstan, China, and India. More frequently, Baiken is the forename as well as the last name.