Across the world, বিল্লাহ (Billah 
, বিল্লাহ ) is quite a rare dominantly male, but uncommonly female first name. The first name বিল্লাহ is habitual in Bangladesh, where it is a rare male name, Algeria, and Indonesia, where it is a rare unisex name. Not in comparison with a country's population, it is the most numerous in Bangladesh, Indonesia, and Nigeria. Much more frequently, বিল্লাহ is the last name as well as the forename.