Hakkengū (Japanese: 八剣宮) is a Shinto shrine established in 708 located in Atsuta-ku, Nagoya, Aichi Prefecture, in Japan.

The legendary sword Kusanagi no Tsurugi, one of the three Imperial Regalia of Japan, is worshipped as the shintai of the shrine.

[2] In 1575, Oda Nobunaga and his eldest son Kankurō encamped in Atsuta during the Battle of Nagashino.

Observing that Hakkengū had deteriorated to the point that it had lost its essential character, Nobunaga ordered the shrine to be repaired by his chief carpenter Okabe Mataemon.

[3] In 1599, shōgun Tokugawa Ieyasu repaired the haiden (hall of worship) and the shrine corridors and walls.