Last name Leisan (Лейсан 
, Леисан , Лэйсан ) , in the world, is quite a rare cognomen. The family name Leisan is characteristic of Russia, where it is a rare surname, Georgia, and Kyrgyzstan, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Russia, India, and Indonesia. More frequently, Leisan is the forename as well as the last name.