St John the Baptist Church, Toodyay, Roman Catholic church building in Toodyay, Australia.

St John the Baptist Church is a former Roman Catholic church on Stirling Terrace in Toodyay, Western Australia, built in 1863–64. It is a rendered brick building with a corrugated iron roof, tall pointed-arch lancet windows, and pointed pinnacles on the entrance porch and main facade. A round window is set into a rendered cross in the gable end.

Father Martin Griver laid the foundation stone in 1863, and the church was completed by late 1864 with support from the New Norcia mission. The building served the community until 1963, when a new church was constructed beside St Aloysius.

The church's transept served as a schoolroom for Catholic children until 1884, when the Sisters of Mercy arrived in Toodyay. The building was de-consecrated in 1963 and sold into private ownership after a new church of the same name was completed beside St Aloysius.

The building sits on Stirling Terrace in an easy-to-find location and remains visible from the street, though it is now private property. Visitors should be respectful and can appreciate the architecture from outside.

The round window in the gable end is set into a cross formed in rendered brickwork, not painted on. The church was de-consecrated in 1963 and sold into private ownership, so the former Catholic chapel on Stirling Terrace is now a private building.