Last name 奇光 (奇光 
, Qiguang 
) , worldwide, is a rare family name. The last name 奇光 is habitual in China, where it is a very rare surname, Chile, where it is an extremely rare surname, and Spain. Measured by absolute frequency, it is the most numerous in China, Spain, and Mexico. More frequently, 奇光 is the forename as well as the last name.