Cognomen 鲁巴 (Ruba 
, 鲁巴 
) , across the world, is quite a common surname. The surname 鲁巴 is characteristic of Israel, where it is quite a rare surname, Philippines, and Croatia. Not in comparison with a country's population, it is commonest in Bangladesh, Philippines, and Israel. More frequently, 鲁巴 is the forename as well as the last name.