Last name 加鲁 (加鲁 
, Gareau 
) , throughout the world, is quite a rare surname. The cognomen 加鲁 is characteristic of Canada, where it is quite a rare surname, New Zealand, and France. Not in comparison with a country's population, it most frequently occurs in Canada, France, and the United States. Much less frequently, 加鲁 is the forename as well as the last name.