Nicholas Stewart (born September 26, 2001), better known as Jynxzi, is an American Twitch streamer, YouTuber, and player of Tom Clancy's Rainbow Six Siege, an online tactical shooter game.

[11] Stewart began gaining popularity through the short-form content he posted on TikTok, which in turn brought more viewers to his Twitch streams.

[12] Hunter Cooke of Dot Esports described Stewart as "entertainment personified—the inner monologue that occurs when you die in a frustrating way or get a cheeky kill.

"[14][15] On March 31, 2023, Stewart joined Spacestation Gaming as their Tom Clancy's Rainbow Six: Siege content creator.

[22] In March 2024, Ubisoft added an entire in-game bundle containing Jynxzi-themed cosmetics to Tom Clancy's Rainbow Six: Siege.