Hitaka-jinja, Shinto shrine in Mizusawa, Ōshū, Japan

Hitaka-jinja is a Shinto shrine in Mizusawa, Ōshū, Iwate Prefecture. Its main hall, rebuilt in 1632 by the castle lord Rusu Munetoshi, is a three-bay nagare-zukuri structure with a copper roof over former thatch, designated a National Important Cultural Property in 1990. A worship hall and offering hall, rebuilt in 1949, connect to it, and a kagura hall stands in the grounds.

The shrine was founded in 810 by order of Emperor Saga and takes its name from the ancient land of Hitakami. Over the centuries, it has been visited by important figures and rebuilt many times.

The name is explained in two ways: the area was called Hitakami no kuni, and during the Former Nine Years' War a prayer by Minamoto no Yoriyoshi was answered when the rain stopped, the sun rose high and Abe no Sadatō was killed at the hour of the horse. The shrine is also called Hitaka Myōken for enshrining Myōken Bosatsu. Its Hifuse festival, held on the last Saturday of April, features the Hitaka-bayashi ensemble, an intangible folk cultural property of Iwate Prefecture.

The shrine stands in Mizusawa, Ōshū, Iwate Prefecture, and its 1,518-tsubo grounds hold the main hall, the Mizuyama Shrine, a stone lantern dated to 1668, the graves of the Rusu lords and a bronze statue of Rusu Munetoshi. The spring festival falls on 22 April, and the Hibuse fire-prevention festival is now held on the last Saturday of April.

Two cedars called Uba-sugi stand in the grounds; one is linked to Minamoto no Yoshiie, who is said to have planted a cedar chopstick after a victory banquet, and it took root. It measures 24 m tall with a 5.8 m trunk circumference and was estimated at over 550 years old when designated. Both are city natural monuments, designated in 1957 and 1972.