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  • Yasuo is voiced by Liam O'Brien.
  • The flute Yasuo plays in his dance emote is most likely a Shakuhachi (harmonica for High Noon; wind controller for PROJECT).
  • The length of Yasuo's sword is about that of a tachi or even an ōdachi. However, he wears it cutting edge up like the shorter katana.
  • Yasuo [jasɯ̟ᵝo] is a Japanese masculine given name, rendered as 康夫 (peaceful man) in the Japanese localization.
    • From Old Japanese *yasu-(si) "cheap, easy > peaceful" & *wo "man, boy"
      • Yasuo is not his birth name, but was given to him when he joined the sword school in an effort to steady his wild nature.
    • Since his brother is named 米 Yone < *yəna-i "[hulled] rice", Yasuo's birth name might be likewise mundane (e.g. Serizawa Kamo's given name means "duck").
  • Way of the Wanderer Way of the Wanderer's doubled critical strike chance references Samurai gameplay portrayals in video games.


YasuoSquare Nightbringer Yasuo [S|L]


YasuoSquare Classic Yasuo [S|L]
  • He references and resembles Miyamoto Musashi and/or Haoumaru from Samurai Shodown via his iconic ponytail design shared with these individuals, where in Musashi's case, it is in reference to the common visual design he is depicted with in fictional media.
    • Haoumaru himself is based on Miyamoto Musashi as well.
      • Another note of Yasuo is how his Steel Tempest Steel Tempest in the Chinese servers is written/dubbed as 斬鋼閃 (Zhǎngāngshǎn, lit. Slashing Steel Flash), which when read in Japanese with the same characters (Zankousen) is exactly the same name as one of Haoumaru's attacks.
    • Yasuo's taunt in most of his skins (save for YasuoSquare Nightbringer [S|L]'s demon form) involves him in-taking fluids from his bamboo flask, then spitting the fluids on his blade to "bless it". This is a habit shared by Haoumaru in his home series' battle intros.
YasuoSquare High Noon Yasuo [S|L]
YasuoSquare PROJECT: Yasuo [S|L]
  • He is from an alternate future in which he was cybernetically augmented as part of the PROJECT Initiative.
  • Master YiSquare PROJECT: Yi [S|L] describes him as:
    • "Tempest, a blossom caught in drift, fluid form. He speaks. 'Death is like the wind'... he is a storm, blade howling... 'always by my side'... the eternal wanderer."
  • If one tells AsheSquare PROJECT: Ashe [S|L] they fight for 'truth' she'll say the following:
    • "We're on the right path."
  • His gear includes:
  • He was originally conceived as 'Cyber Ops Yasuo'.
  • He references Gray Fox, Samuel Rodrigues or Raiden, all from the Metal Gear series. The last was further referenced in Yasuo's recall animation pose that is similar to Raiden's when he battled Vamp's robots in Metal Gear Solid 4: Guns of the Patriots, where he holsters his blade by the pommel underneath his foot.
  • Compared to his other skins' attack animations (barring YasuoSquare Nightbringer Yasuo [S|L]), this skin has different attack animations, along with only having three animations compared to the other skins' four.
  • When performing his joke, taunt or dance emotes, his helmet reveals his actual face, thus featuring none of the sound altercations. This is unique to him among the PROJECT skins.
  • His sword blade turns olive-yellow while Last Breath Last Breath's bonus armor penetration is active, as opposed to a subtle aura covering his sword.
  • In this skin, he drinks from a fuel-container which may contain a substance suitable for cyborgs.
  • He shares this theme with AsheSquare Ashe, EkkoSquare Ekko, FioraSquare Fiora, JhinSquare Jhin, KatarinaSquare Katarina, LeonaSquare Leona, LucianSquare Lucian, Master YiSquare Master Yi, VayneSquare Vayne, ViSquare Vi, and ZedSquare Zed.
YasuoSquare Blood Moon Yasuo [S|L]
YasuoSquare Nightbringer Yasuo [S|L]
  • During the development period, the skin was called "Demonblade Yasuo".
    • This development name is shared with TryndamereSquare Demonblade Tryndamere [S|L], which implies that Nightbringer Yasuo may have originally been intended for the "Demonblade" theme.
  • He resembles Nightmare from Soulcalibur.
  • The flask he normally drinks from is instead turned into a potion vial in this skin.
  • He shares this theme with RivenSquare Dawnbringer Riven [S|L].


  • Yasuo is an Ionian swordsman accused of treason for allegedly murdering an Elder. He is being hunted down across the island continent under the evidence that the killer employed a wind technique, one that only Yasuo has mastered in the present day.
    • He crossed paths with TaliyahSquare Taliyah while on the run, teaching the Shuriman stone mage how to control her powers. When they parted ways, she gifted him a long thread from her handspun wool tunic (the same one he uses to tie his hair up).
    • Yasuo suspects RivenSquare Riven of being the Elder's killer, as evidenced in interaction quotes with her.