Cognomen Sang-Woo (상우 
, Sang-Woo 
) , worldwide, is an extremely rare surname. The last name Sang-Woo is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Much more frequently, Sang-Woo is the forename as well as the last name. Parts of the name also exists independently as a last name Sang, and a last name Woo.