明星院, Buddhist temple in Gotō, Japan.

Myōjō-in is a Shingon Buddhist temple in Goto, Nagasaki Prefecture, and the head temple of the Shingon school in the Goto Islands. Its main hall, rebuilt in 1778, has a decorated ceiling with Buddhist paintings and karylōbinga birds at the four corners. The carving above the entrance depicts elephants rather than dragons or clouds, reflecting Indian Buddhist influence.

The temple is the oldest in the Goto Islands and was converted to Shingon Buddhism by Kukai. The current main hall burned down in 1778 and was rebuilt by the then lord of Fukue Domain, Goto Moriyuki. It is the oldest surviving wooden building in the Goto Islands.

This temple serves as the first stop on a pilgrimage route connecting 88 sacred places throughout Goto, drawing visitors interested in traditional Buddhist practice. People come to pray and experience the spiritual significance the site holds within the local community.

From central Goto city, drive about 10 minutes along Route 49 toward Tomie; just past Daien-ji, turn right at the sightseeing sign and continue about 400 m. Parking fits 4 to 5 cars, and a scheduled sightseeing bus also stops here. The main hall can be viewed from around 9:00 to 17:00.

The main hall's coffered ceiling is painted with Buddhist images, with Kalavinka birds at the four corners; the resident priest says hearing their beautiful voices brings instant enlightenment. The entrance carving above the door shows elephants rather than dragons or clouds, a trace of Indian Buddhist influence from before Kukai and Saicho returned from China.