Surname บุญชาญ (บุญชาญ 
, Boonchan 
) , in the world, is quite a rare cognomen. The family name บุญชาญ is habitual in Thailand, where it is quite a rare surname, the United States, where it is an extremely rare surname, and the United Kingdom. Very seldom, บุญชาญ is the forename as well as the last name.