Last name Dykhan (Дихан 
, Дыхан 
, Dykhan 
) , worldwide, is a rare cognomen. The last name Dykhan is habitual in Ukraine, where it is a rare surname, Kazakhstan, and Kyrgyzstan, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Ukraine, Kazakhstan, and Russia. More frequently, Dykhan is the forename as well as the last name.