renowned Japanese scholar and haikai poet of the early Tokugawa period (1603–1867) who founded the Teitoku (or Teimon) school of haikai poetry. Teitoku raised haikai—comic renga (“linked verses”) from which the more serious 17-syllable haiku of Bashō were derived—to an acceptable literary standard and made them into a popular poetic style.

Teitoku was the son of a professional renga poet, and he received an excellent education from some of the best poets of the day. After making the acquaintance of the Neo-Confucian scholar Hayashi Razan, Teitoku began giving public lectures on Japanese classics. In about 1620 he opened the Teitoku school in his home; at first he concentrated on educating children, but gradually he became more interested in tutoring aspiring poets.

Throughout this time he had been composing poems, primarily serious waka and renga but also lighter haikai. Although reluctant at first, he allowed one of his students to publish a number of his haikai in the anthology Enokoshū (1633; “Puppy Collection”). This volume established him as the leading poet of the early to mid-17th century, and numerous poets were inspired to compose haikai. Several other collections of his poems were published, including Taka tsukuba (1638) and Shinzo inu tsukuba shu (1643). Teitoku also set down the rules he had formulated for writing haikai in Gosan (1651).