Tōkyō Onchō Kilisesi, Protestant church in Ebisu-Nishi, Japan

Tōkyō Onchō Kilisesi is a Protestant church building in the Ebisu-Nishi neighborhood of Tokyo that serves as a gathering place for believers of various backgrounds. The building provides space for worship services and meetings for members of the Reformed congregation.

Tokihisa Tsuneba founded Morimotocho Church of the Japan Christ Church in Azabu-ku in 1942. The congregation was absorbed into the United Church of Christ in Japan in 1943, then left it in 1947, when Tsuneba helped found the Reformed Church in Japan. A chapel was built in Ebisu, Shibuya, in 1951 and the congregation took the name Tokyo Oncho Church.

The church is the seat of the general assembly office of the Reformed Church in Japan, the denomination it helped found. Members have included Kazuhiro Inagaki, professor at Tokyo Christian University, and Masaaki Suzuki, founder of Bach Collegium Japan. The name Onchō means "grace."

The church is in Ebisu-Nishi, Shibuya ward, and the Japan Reformed Church's general assembly office is located there. Visitors should check the congregation's own announcements for service times rather than assume Sunday hours.

The Japan Reformed Church keeps its general assembly office at this Ebisu building, so a local congregation also serves as an administrative centre. Among its members are Kōichi Mino, who was pastor from 2001 until his retirement in 2019, and the Bach Collegium Japan founder Masaaki Suzuki.