Kosai
# Kosai

Kosai can stand for:

* Hiroki Kosai, 20th-century Japanese astronomer
* Kosai, Shizuoka, Japan, a city
* Kōsai, a disciple of Hōnen of the Jōdo Shū Buddhist sect
* Kosai river, near Kharagpur in the Indian state of West Bengal
* Count Kosai Uchida (or Uchida Yasuya), 19th-20th-century Japanese statesman and diplomat
* Wiang Kosai, a national park in the Phrae and Lampang provinces of Thailand
* Kosai or koose, an African pea fritter
