Across the world, Арройо (Arroyo 
, Арройо 
) is a rare unisex first name. The first name Арройо is characteristic of Peru, where it is a very rare primarily male, but scarcely girly name, Colombia, where it is a very rare gender-neutral name, and Italy. Measured by absolute frequency, this name is the most popular in the United States, Philippines, and Colombia. More frequently, Арройо is the last name as well as the forename.