Family name Baiyer (Баиер 
, Baiyer 
) , around the globe, is a rare cognomen. The last name Baiyer is characteristic of Papua New Guinea, where it is quite a rare surname, Russia, where it is a very rare surname, and Kazakhstan. Not in comparison with a country's population, the name is most common in Papua New Guinea, Russia, and Brazil. Very seldom, Baiyer is the forename as well as the last name.