Seogang Bridge or Grand Seogang Bridge is a six-lane two-way bridge over the Han River in Seoul, South Korea. The bridge links the Mapo and Yeongdeungpo districts. It is supported in the middle as it passes over the protected islets of Bamseom.

The Han River or Hangang is a major river in South Korea, with some of its tributaries and drainage basin in North Korea. It is the fourth longest river on the Korean peninsula after the Yalu ("Amnok"), Tumen ("Tuman"), and Nakdong rivers. The river begins as two smaller rivers in the eastern mountains of the Korean peninsula, which then converge near Seoul.