Ishikawa Toyonobu (?? ??; 1711 - July 1; 1785) was a Japanese ukiyo-e print artist. He is sometimes said to have been the same person as Nishimura Shigenobu; a contemporary ukiyo-e artist and student of Nishimura Shigenaga about whom very little is known.

A pupil of Nishimura Shigenaga; Toyonobu produced many monochrome 'lacquer prints' (urushi-e) which reflected the influence of Okumura Masanobu as well. Many of these were yakusha-e (actor prints) and bijinga (images of beautiful women); including images of standing courtesans; whose faces conveyed an impassivity typical of the works of the Kaigetsudo school.

Later in his career; Toyonobu became one of the leading producers of color prints; chiefly benizuri-e ('rose prints'); but stopped producing ukiyo-e shortly after Suzuki Harunobu pioneered the full-color print (nishiki-e) in 1765.