Kobayashi Issa (?? ??, June 15, 1763 – January 5, 1828) was a Japanese poet and lay Buddhist priest of the Jodo Shinshu sect known for his haiku poems and journals.
He is better known as simply Issa (??), a pen name meaning Cup-of-tea (lit.
"one [cup of] tea").
He is regarded as one of the four haiku masters in Japan, along with Basho, Buson and Shiki — "the Great Four."Reflecting the popularity and interest in Issa as man and poet, Japanese books on Issa outnumber those on Buson and almost equal in number those on Basho.