Named after Church Avenue, the old road to the Reformed church of Flatbush.
Church Avenue was previously known as Church Lane, and as East Broadway east of Flatbush Avenue. As the Reformed Church gained in importance, the road was named after it, says Forgotten New York. The church stands at Church and Flatbush Avenues; its congregation was founded in 1654, according to Untapped New York, and its present stone building dates from the 1790s.