Poetic diary or Nikki bungaku (日記文学) is a Japanese literary genre, dating back to Ki no Tsurayuki's Tosa Nikki, compiled in roughly 935. Nikki bungaku is a genre including prominent works such as the Tosa Nikki, Kagerō Nikki, and Murasaki Shikibu Nikki. While diaries began as records imitating daily logs kept by Chinese government officials, private and literary diaries emerged and flourished during the Heian period.

Oku no Hosomichi, translated as The Narrow Road to the Deep North and The Narrow Road to the Interior, is a major work of haibun by the Japanese poet Matsuo Bashō, considered one of the major texts of Japanese literature of the Edo period. The first edition was published posthumously in 1702.