Cognomen ดูวัล (Duvall 
, ดูวัล 
) , across the world, is a common surname. The family name ดูวัล is habitual in the United States, where it is quite a rare surname, New Zealand, and Canada, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in the United States, Canada, and the United Kingdom. Much less frequently, ดูวัล is the forename as well as the last name.