Surname 本根 (本根 
, Bengen 
) , all over the world, is a rare last name. The cognomen 本根 is characteristic of Germany, where it is a rare surname, New Zealand, and Indonesia, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in China, Germany, and Indonesia. More frequently, 本根 is the forename as well as the last name.