Kazuo Takahashi (Japanese: 高橋 一雅, Hepburn: Takahashi Kazuo; October 4, 1961 – July 4, 2022), known professionally as Kazuki Takahashi (高橋 和希, Takahashi Kazuki), was a Japanese manga artist. He is best known as the author of Yu-Gi-Oh!, published in Weekly Shōnen Jump from 1996 to 2004. The manga spawned a trading card game of the same name, which holds the Guinness World Record for the best-selling trading card game of all time.

On July 6, 2022, Takahashi was found dead in the water 300 meters (980 ft) off the shore of Nago, Okinawa, by Japan Coast Guard officers following a civilian report from a passing boat. He was found wearing snorkeling gear, and his cause of death was determined to be drowning.