Okazaki Kunisuke (岡崎邦輔, April 12, 1854 – July 22, 1936) was a politician and cabinet minister in the late Meiji and Taishō period Empire of Japan.

His father was a karō with revenues of 400 koku as a direct retainer of the Kiishū Tokugawa family, and he was the first cousin of Mutsu Munemitsu.

When Mutsu was appointed as ambassador to the United States, Okazaki accompanied him as his secretary and enrolled in the University of Michigan, where he became acquainted with Minakata Kumagusu.

It marked the start of his political career, and he was subsequently to be reelected to the House of Representatives for ten consecutive times.

For the next twenty years, he continued to play an active, behind-the-scenes role in Japanese party politics, reemerging into the spotlight as Minister of Agriculture and Forestry under the Katō Takaaki administration in 1925.