was the main sea-going component of the Imperial Japanese Navy.
Rengō Kantai may also refer to:
Imperial Navy (film), Japanese title Rengō Kantai, a 1981 Japanese film about Isoroku Yamamoto
See also Rengō Kantai Shirei Chōkan: Yamamoto Isoroku, a 1968 film about Isoroku Yamamoto Rengō Kantai Shirei Chōkan: Yamamoto Isoroku (2011 film), a Japanese film about Isoroku Yamamoto