Suzuki Harunobu (Japanese: 鈴木 春信; c. 1725 – 7 July 1770) was a Japanese designer of woodblock print artist in the Ukiyo-e style. He was an innovator, the first to produce full-color prints (nishiki-e) in 1765, rendering obsolete the former modes of two- and three-color prints. Harunobu used many special techniques, and depicted a wide variety of subjects, from classical poems to contemporary beauties. Like many artists of his day, Harunobu also produced a number of shunga, or erotic images. During his lifetime and shortly afterwards, many artists imitated his style. A few, such as Harushige, even boasted of their ability to forge the work of the great master. Much about Harunobu's life is unknown.
Though some scholars assert that Harunobu was originally from Kyoto, pointing to possible influences from Nishikawa Sukenobu, much of his work, in particular his early work, is in the Edo style. His work shows evidence of influences from many artists, including Torii Kiyomitsu, Ishikawa Toyonobu, the Kawamata school, and the Kanō school. However, the strongest influence upon Harunobu was the painter and printmaker Nishikawa Sukenobu, who may have been Harunobu's direct teacher.
Little is known of Harunobu's early life; his birthplace and birthdate are unknown, but it is believed he grew up in Kyoto. It is said he was forty-six at his death in 1770. Unlike most ukiyo-e artists, Harunobu used his real name rather than an artist name. He was from a samurai family, and had an ancestor who was a retainer of Tokugawa Ieyasu in Mikawa Province; this Suzuki accompanied Ieyasu to Edo when the latter had his capital built there. Harunobu's grandfather Shigemitsu and father Shigekazu were stripped of their hatamoto status when they were found to be involved in financing of gambling and other activities; they were exiled from Edo and relocated to Kyoto. At some point, Harunobu became a student of the ukiyo-e master Nishikawa Sukenobu.