Katana (Tatsu Yamashiro (山城 タツ, Yamashiro Tatsu)) is a fictional superheroine that appears in comic books published by DC Comics.
First appearing in 1983, Katana is a samurai warrior whose skill with a sword allows her to fight for justice as a superhero.
Her tragic backstory includes the death of her husband, Maseo, whose soul becomes trapped in her blade, the Soultaker.
Katana has been seen in many DC Comics superhero teams, including the Justice League and the Birds of Prey, but is most commonly seen with the team known as the Outsiders, a team of heroes hand-picked by Batman.
In the 2016 movie Suicide Squad, the character is played by actress Karen Fukuhara, which is part of the DC Extended Universe.