| Misai Kosugi | |
| Native Name: | 小杉放庵 |
| Native Name Lang: | ja |
| Nationality: | Japanese |
| Occupation: | Painter |
| Other Names: | Hōan Kosugi |
| Birth Date: | 30 December 1881 |
| Birth Place: | Nikkō, Japan |
| Death Place: | Myōkō, Japan |
Misei Hoan Kosugi (; 30 December 1881 - 16 April 1964) was a Japanese painter. He was associated with Western-style (yōga) art movement. Kosugi was a founding member of the Shunyo-kai art society in 1922, while attending Nihon Bijutsuin.[1] His work was part of the painting event in the art competition at the 1932 Summer Olympics.[2]