Kuki Yoshitaka (九鬼 嘉隆?) (1542 – November 17, 1600) was a naval commander during Japan's Sengoku Period, under Oda Nobunaga, and later, Toyotomi Hideyoshi. He was also the ninth headmaster of the Kuki family's school of martial arts, Kukishin-ryū and thus a very skilled warrior.
In the 1570s, Kuki allied himself with Oda Nobunaga, and commanded his fleet, supporting land-based attacks on the Ikkō-ikki. In 1574, his aid ensured a victory for Nobunaga in his third attempt to attack the Nagashima fortress. In 1576, he was defeated at Kizugawaguchi by the Mōri clan fleet, but 1578 brought victory in the second Battle of Kizugawaguchi, in which Kuki used 'iron ships' to repel the arrows and musket balls of the opposing Mōri clan's ships.
In 1587, he led Toyotomi Hideyoshi's fleet in a campaign in Kyūshū, alongside Konishi Yukinaga, Wakizaka Yasuharu and Katō Yoshiaki. Three years later, along with Wakizaka Yasuharu and Kato Yoshiaki he went on to lead the Siege of Odawara and the Siege of Shimoda. He continued in his role as commander of Hideyoshi's fleet, launching an invasion of Korea in 1592 from his flagship Nipponmaru. He was severely defeated in the Battle of Myeongryang.