Bunzō Hayata (Japanese: 早田文藏 Hayata Bunzō) was a Japanese botanist that worked on plants in Japan and Taiwan. He was a professor at the Imperial University of Tokyo, and third director of the Research Botanical Gardens.
Another Japanese botanist, Hiroyoshi Ohashi published a detailed biography of Hayata.
When citing a botanical name, Bunzō Hayata is abbreviated as Hayata.