was an early Heian period Buddhist monk and waka poet. Little is known about his life other than that he lived in .
When Ki no Tsurayuki wrote the of the Kokinshū, he selected Kisen as one of the whose work was to be considered as superior. Tsurayuki says the following to comment on Kisen's work:
Kisen is sometimes said to be the author of the poetry collection, also known as the, but it is probably apocryphal and created well after the end of the Heian period.
The following two are the only poems that can be confidently traced back to him: