Sōgen-ji, former Rinzai Zen temple site in Tomari, Naha, Japan

Sōgen-ji was a Rinzai Zen Buddhist temple in Tomari, Naha. Its surviving First Gate is a triple-arched stone gate of rough-cut grey blocks, flanked by stone walls extending 66.3 m on each side, with one side gate per side. The gate and walls, built by 1527, are the only surviving structure of the temple, which burned in 1945.

Founded in 1527, shortly after King Shō Sei took the throne, Sōgen-ji was a Rinzai Zen temple that served as the royal ancestral shrine of the Ryūkyū Kingdom, housing spirit tablets from Shunten to Shō Tai. It was not a royal mausoleum; the kings were buried at Tama-udun near Shuri Castle. Chinese envoys held the San'o Yusai ceremony here before investitures at Shuri Castle. The temple burned in 1945, and only the stone gate was restored.

The temple's Okinawan name is Suugii. Chinese investiture envoys performed the San'o Yusai rite here, consoling the spirit of the previous king before the investiture ceremony at Shuri Castle. The Geba Stele still standing by the gate bears the 1527 inscription ordering that both aji and lower officials dismount at this spot.

The grounds are now accessible as a public park with pathways running between the stone structures. Wear comfortable shoes since the terrain has uneven surfaces and steps to navigate.

The temple was not a mausoleum: the kings were buried at Tama-udun near Shuri Castle, while Sōgen-ji held their spirit tablets. The surviving Geba Stele, erected in 1527, still stands east of the stone gate and orders in Chinese and Japanese that officials dismount here; its twin on the west side was lost in 1945.