Kuwagata Keisai (1764–1824) was an ukiyo-e artist active in the late Edo period. He initially studied under Kitao Shigemasa and worked under the name Kitao Masayoshi. Among his fellow pupils was Santō Kyōden (also known as Kitao Masanobu).

Keisai first gained recognition as a book illustrator and became particularly famous for his bird’s-eye views of Edo.

In 1794, after being appointed official painter to the Tsuyama domain, he studied under Kanō Koremasa (also read as Kanō Tadanobu / Koremasa, depending on sources). He subsequently adopted the names Kuwagata Keisai or Shōshin, ceased producing woodblock prints, and devoted himself primarily to painting in ink and color.

His style was not limited to the Kanō school; he also mastered traditional techniques such as Yamato-e and Rimpa painting. In Gisakusha Kōho (Supplementary Notes on Writers of Fiction) by Kimura Mokurō, Keisai is listed alongside artists such as Katsushika Hokusai, Utagawa Toyokuni, and Utagawa Kunisada, indicating the high esteem in which he was held during his lifetime.