>
Family name 先生 (先生 , Sensei , Sinsi ) , around the world, is a common cognomen. The family name 先生 is habitual in China, where it is quite a rare surname, Japan, and Peru, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in China, Japan, and India. Likewise, 先生 is the forename as well as the last name.