Katakura Kagenaga (片倉 景長, May 14, 1630 – July 9, 1681) was a Japanese samurai of the early Edo period, who served as a senior retainer of the Date clan of Sendai han.
His childhood name was Sannosueke (三之助) later changed to Kojūrō.
The lord of Shiroishi Castle, Kagenaga was the third bearer of the common name Kojūrō.
Upon receiving news of the actions of Harada Munesuke, Kagenaga immediately brought the domain to emergency footing, restraining any disorder from breaking out and saving the Sendai domain from the danger of being attaindered.
However, as he was sickly, he resigned his post immediately following the incident's resolution.