Kazuki Takahashi was a Japanese manga artist and game creator, best known as the original creator of the internationally successful franchise Yu-Gi-Oh!. Born in Tokyo on October 4, 1961, Takahashi began his career as a manga artist in 1981 after winning the Shogakukan New Comic Award for his one-shot Ing! Love Ball. Following a series of early works that were not commercially successful, including Tokiō no taka (1990) and the two-volume series Tennenshoku Danji Buray (1991-1992), he found his breakthrough in 1996 when he launched Yu-Gi-Oh! in Weekly Shōnen Jump. The manga ran until 2004 and became a global phenomenon, spawning a trading card game that holds the Guinness World Record for the best-selling trading card game of all time.

As the original creator, Takahashi is credited for his foundational role across numerous anime adaptations. The anime Yu-Gi-Oh! Duel Monsters GX 20th Remaster, which began airing in April 2025, lists him and his company Studio Dice as the original work creators. The theatrical anime Yu-Gi-Oh! 3D: Bonds Beyond Time was also created by Takahashi and noted as the world's first full-length animated feature to be hand-drawn and rendered into 3D. His credit extends to later series in the franchise, including Yu-Gi-Oh! Sevens and Yu-Gi-Oh! Go Rush!!, where he is recognized for the original concept. Takahashi also served as the original story creator for the 2016 film Yu-Gi-Oh!: The Dark Side of Dimensions and provided character design work for the same project. Beyond the main anime series, his original series concept underpins adaptations such as Yu-Gi-Oh! Zexal, Yu-Gi-Oh! Arc-V, and Yu-Gi-Oh! VRAINS.

Throughout his career, Takahashi remained actively involved in the Yu-Gi-Oh! franchise even after the original manga concluded. He continued to supervise the creation of subsequent Yu-Gi-Oh! manga series, with his assistants Akira Itō, Naoyuki Kageyama, and Masashi Sato taking on art duties for spin-offs such as Yu-Gi-Oh! R, Yu-Gi-Oh! GX, and Yu-Gi-Oh! 5D's. In his own right, Takahashi created additional manga works beyond Yu-Gi-Oh!, including the one-shot Drump (2013), the limited series The Comiq (2018), and Secret Reverse (2019), a two-part manga for the Marvel × Shōnen Jump+ Super Collaboration.

Recurring themes in Takahashi's work reflect his personal interests in games and friendship. He drew inspiration from his enjoyment of shogi, mahjong, card games, and tabletop role-playing games, which became central to the game-based battles in Yu-Gi-Oh!. The theme of friendship is embedded in the very names of his main characters Yūgi and Jōnouchi, which derive from the Japanese word yūjō, meaning "friendship". His artistic identity was shaped by illustrators such as Drew Struzan, Alphonse Mucha, and Norman Rockwell, and he cited manga including Akira, JoJo's Bizarre Adventure, and Dragon Ball as personal favorites.

Takahashi's industry significance is substantial. In 2015, he received the Inkpot Award from Comic-Con International for his outstanding contributions to comics. His creation of the Yu-Gi-Oh! Trading Card Game transformed a narrative element originally intended as a minor feature into a cultural and commercial powerhouse. The game, initially named Magic and Wizards within the manga, was extended due to overwhelming fan demand and later developed by Konami into the best-selling trading card game in history. Takahashi passed away on July 4, 2022, while assisting in the rescue of others caught in a rip current off the shore of Nago, Okinawa. His legacy as the architect of one of the most recognizable anime and manga franchises of all time remains firmly established.