Family name Сакаи (盛 
, Sakai 
, 堺 , among others...) , all around the world, is a widespread last name. The last name Сакаи is habitual in China, where it is quite a common surname, Singapore, where it is quite a rare surname, and Japan. Measured by absolute frequency, it most frequently occurs in China, Japan, and Brazil. Much less frequently, Сакаи is the forename as well as the last name.