Suwa taisha, Shinto shrine complex in Chino, Suwa and Shimosuwa, Nagano Prefecture, Japan

Suwa taisha is a shrine complex in Chino, Suwa and Shimosuwa in Nagano Prefecture, made up of four separate buildings. The site splits into an upper and a lower group, located on opposite sides of Lake Suwa and linked by walking trails and roads.

The Nihon Shoki records envoys sent to worship the gods of Suwa in 691, the shrine's first documentary mention. The Kojiki and Sendai Kuji Hongi instead tell of Takeminakata's defeat and flight to Suwa, a myth regarded as the shrine's origin. It became the ichinomiya of Shinano Province and head of some 25,000 Suwa shrines nationwide.

The shrine's crest is the kaji leaf: the Upper Shrine uses a four-veined "Suwa kaji" and the Lower Shrine a five-veined "Myōjin kaji". The kami are rarely invoked individually, being worshipped collectively as Suwa Daimyōjin. The Lower Shrine's sacred trees are a sugi at Harumiya and a yew at Akimiya.

The upper shrine group can be reached from JR Kami-Suwa Station by bus in roughly 50 minutes or by taxi in 15 minutes. The paths connecting the four buildings are open to the public and can be visited throughout the year, though sturdy footwear helps when walking between locations.

During the Onbashira Festival, participants transport 200-year-old fir trees weighing up to 10 tons using only human power. The trees are then erected at the corners of the shrine, a ritual that takes place every six years and draws thousands of spectators.