Last name סדניו (Cedenio 
, סדניו 
) , in all the world, is a rare surname. The last name סדניו is characteristic of Philippines, where it is a rare surname, Malaysia, where it is a very rare surname, and Nicaragua. Measured by absolute frequency, this name is the most popular in Philippines, Malaysia, and the United States. Very seldom, סדניו is the forename as well as the last name.