Last name Ридо (Rideau 
, Ридо 
) , all over the world, is quite a rare cognomen. The family name Ридо is characteristic of France, where it is a rare surname, the United States, and Chile, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in the United States, France, and Japan. Very seldom, Ридо is the forename as well as the last name.