Enmyō-in (圓明院) is a Buddhist temple of the Shingon Chizan sect located in the city of Kimitsu in Chiba Prefecture.

Its honzon, or primary object of veneration, is a statute of Fudō Myōō.

A well-known kaya, or Japanese nutmeg-yew tree, of almost 5.4 meters in circumference is located within the temple grounds.

A small hall was built at Enmyō-in in 1989 dedicated to prayers for traffic safety.

It fell in ruin, but was revived during the Keian years of the Edo period, approximately 1648-1652.