Tsushima may refer to:

Places

• Tsushima Island, part of Nagasaki Prefecture
  • Tsushima, Nagasaki, a city in Nagasaki Prefecture (coterminous with Tsushima Island)
  • Tsushima Province, a historical province, coterminous with modern Tsushima Subprefecture
  • Tsushima Subprefecture, an administrative subdivision of Nagasaki prefecture (coterminous with Tsushima Island)
  • Tsushima Fuchū Domain, a feudal domain of the early modern period, largely if not entirely contiguous with the Province
• Tsushima Basin, also known as Ulleung Basin, located at the juncture of the Sea of Japan and the Korea Strait
• Tsushima Strait, the eastern channel of the Korea Strait
• Tsushima, Aichi, a city in Aichi Prefecture
• Tsushima, Ehime, a town dissolved in August 2005, formerly located in Ehime Prefecture
• Tsushima Shrine, Aichi Prefecture
• Tsushima Shrine, located in the city of Mitoyo, Kagawa Prefecture and only accessible one day a year in early August

Events

• Battle of Tsushima (1905), also known as the "Sea of Japan Naval Battle", the last sea battle of the Russo-Japanese War
• Tsushima Incident (1861), involving Russia, Japan, and Britain

Ships

• Tsushima Maru, a civilian ship sunk by American naval forces during World War II
• Japanese cruiser Tsushima
• Japanese escort ship Tsushima

People

• Fuminori Tsushima (対馬 文紀, born 1969), Japanese bobsledder
• Keiko Tsushima (1926–2012), Japanese actress
• Leo Tsushima, fictional character in the Tsuyokiss video game and anime
• Mitsutoshi Tsushima (born 1974), Japanese football player
• Ryuta Tsushima or Iwakiyama Ryūta (born 1976), Japanese sumo wrestler
• Shuji Tsushima or Osamu Dazai (1909–1948), Japanese author
• Yoshiko Tsushima, fictional character from the media-mix project Love Live! Sunshine!!
• Yūko Tsushima or Tsushima Satoko (born 1947), Japanese fiction writer, essayist and critic
• Yūji Tsushima (born 1930), Japanese politician

Other uses

• Ghost of Tsushima, a video game released in 2020 for the PlayStation 4 and PlayStation 5
• Tsushima brown frog, a species of frog endemic to Japan
• Tsushima cat, a wild cat
• Tsushima Current, a branch of the Kuroshio Current into the Sea of Japan
• Tsushima dialect, a Japanese dialect spoken on Tsushima Island of Nagasaki Prefecture
• Tsushima salamander, a species of salamander endemic to Japan