Lady Deathstrike (Yuriko Oyama), occasionally spelled "Deathstryke", is a Marvel Comics supervillain, a foe of the X-Men, especially Wolverine.
Her father Lord Dark Wind created the adamantium-bonding process that was forced on Wolverine by Weapon X. A self-styled warrior, Lady Deathstrike hired the villain Spiral’s "body shoppe" to bond adamantium to her own skeleton in addition to other cyber-genetic enhancements. She has since worked as a mercenary and assassin and feels a need to prove herself by killing Wolverine.
A mutant version of Lady Deathstrike, played by Kelly Hu and without any of Deathstrike's backstory, appeared as a brainwashed henchwoman of William Stryker in the 2003 film X2: X-Men United. She also re-appeared in X-Men: The Official Game, where she was revealed to be Silver Samurai's apprentice. In 2009, Lady Deathstrike was ranked as IGN's 78th Greatest Comic Book Villain of All Time.