Ottawa French Seventh-day Adventist Church, Francophone Seventh-day Adventist church on King Edward Avenue, Ottawa, Canada

The Ottawa French Seventh-day Adventist Church occupies a 1904 building at 375 King Edward Avenue, north of Rideau Street. Architect John W.H. Watts designed it as the first purpose-built synagogue in Ottawa, for the Adath Jeshurun congregation. The brick structure faces the street with a symmetrical front and window openings from its original construction.

The building originally served as the Adath Jeshurun Synagogue, functioning as a Jewish place of worship for its community. In 1999, it was taken over by the Seventh-day Adventist congregation and has since been used for French-language religious services.

The congregation worships in French, and the building's earlier life as a synagogue remains visible in its 1904 fabric on King Edward Avenue. The Adventist congregation bought the building in 1999 and opposed the City of Ottawa's 2016 heritage designation, requested by the Lowertown Community Association.

The church stands at 375 King Edward Avenue, a short walk north of Rideau Street in Lowertown. It is an active francophone congregation, so the building is best visited around its own service and programme times rather than as an open monument; check the congregation's schedule before setting out.

The city of Ottawa designated the building a heritage property in 2016 after a request from the Lowertown Community Association; the Seventh-day Adventist congregation opposed the designation. Before 1999 it served as a memorial chapel where funerals of many Ottawa notables were held.