>
Cognomen Lagoa (Lagoa ) , in all the world, is quite a rare last name. The cognomen Lagoa is characteristic of Portugal, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Argentina, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Portugal, Brazil, and Argentina. Very seldom, Lagoa is the forename as well as the last name.