Across the world, Janeiro (Janeiro 
, Janeru 
) is a rare principally male, but very infrequently female given name. The first name Janeiro is characteristic of the Dominican Republic, where it is a rare male name, Mexico, where it is a very rare principally masculine, but scarcely girly name, and Philippines, where it is a very rare male name. In absolute terms, the name is most common in the Dominican Republic, Mexico, and the United States. More prevalently, Janeiro is the last name as well as the forename.
| concepción janeiro badminton player, ES (b. 1954) |
|