Last name רידו (Rideau 
, רידו 
) , worldwide, is quite a rare family name. The last name רידו is habitual in France, where it is a rare surname, the United States, and Chile, where it is a very rare surname. Measured by absolute frequency, it is commonest in the United States, France, and Japan. Much less frequently, רידו is the forename as well as the last name.