Kobayashi Issa (小林一茶, born Kobayashi Nobuyuki, June 15, 1763, Kashiwabara, Shinano province [present-day Nagano prefecture], Japan; childhood name Kobayashi Yatarō; died January 5, 1828, Kashiwabara), Japanese haiku poet. Issa is revered in Japan and internationally as one of the greatest poets of the haikai tradition, ranked with Matsuo Bashō and Yosa Buson.