Independence Gate or Dongnimmun is a memorial gate in Seoul, South Korea. It was built in January 1898. Its construction was planned by Soh Jaipil, as a symbol of Korea's commitment to independence. It was designated as a Historic Site of South Korea in 1963, and relocated 70 metres (230 ft) northwest from the original location in 1979 for preservation.

Seo Jae-pil, better known by his English name Philip Jaisohn, was a Korean American politician, physician, and Korean independence activist. He was the first Korean to become a naturalized citizen of the United States. He also founded the Tongnip Sinmun, the first Korean newspaper written entirely in Hangul.