Surname อุโอ (Uo 
, อุโอ 
) , worldwide, is quite a common last name. The cognomen อุโอ is characteristic of Taiwan, where it is quite a rare surname, Japan, and Myanmar. Measured by absolute frequency, it is commonest in Eastern Asia, particularly Japan, Taiwan, and China. Very seldom, อุโอ is the forename as well as the last name.