All over the world, 碧玉 (碧玉 
, Biyu 
, Bjork 
) is a common mostly female, but seldom male forename. The first name 碧玉 is habitual in Iceland, where it is quite a rare girly name, China, where it is quite a rare dominantly girly, but infrequently masculine name, and Taiwan, where it is a rare feminine name. Measured by absolute frequency, it most frequently occurs in China, India, and Taiwan. Much less frequently, 碧玉 is the last name as well as the forename.