U-dong (우동), in Haeundae-gu, was named from the village of U-ri. It was given the status of dong in 1976.

U 1-dong (우1동):

• Address: #539-4, U 1-dong, Haeundae-gu, Busan
• Tel: (051) 749-4901
• Website: [1]
• Population: 35,000

U 2-dong (우2동):

• Population: 26,000