Usando

Usan-do (Korean: 우산도, 于山島) is a historical name for an island in the Sea of Japan (East Sea) described in Korean records.

It was part of the ancient state of Usan-guk, but its exact identity is disputed. It may refer to:

• Ulleungdo
• Jukdo, a Korean island 4 km east of Ulleungdo.

Old Korean maps of Usan-do

• Usan-do
• 
  Joseon map(1530)
• 
  Joseon map(1530): Ulleungdo (鬱陵島) and Usan (于山島)
• 
  Kim Jeong-ho "Daedongyeojido" (1861)：Ulleungdo (鬱陵島) and Usando(于山)
• 
  Kim Jeong-ho "Daedongyeojido" (1861)：East of Ulleungdo (鬱陵島) and Usando(于山)
• 
  A map by Korean Empire: Ulleungdo (鬱陵島) and Usan(于山)

See also

• Lee Kyu-Won