Cognomen 哈多 (Harto 
, Haddow 
, Hadow 
) , worldwide, is a common surname. The cognomen 哈多 is characteristic of Indonesia, where it is quite a rare surname, the United Kingdom, and New Zealand. Measured by absolute frequency, the name is most common in Indonesia, the United Kingdom, and the United States. Likewise, 哈多 is the forename as well as the last name.