Katakura Muranaga (片倉村長) (1667 – 1691) was a Japanese samurai of the Edo period. A senior retainer of the Sendai domain, he was first known as Masanaga (政長). Muranaga was also the fourth Katakura Kojūrō. His childhood name was Sannosuke (三之助) later changed to Kojūrō.