The Church of Saint Francis of Assisi and Saint Blaise is a Roman Catholic parish church in the Roman Catholic Diocese of Brooklyn, located at Nostrand Avenue and Lincoln Road, in Prospect Lefferts Gardens, Brooklyn, New York City, New York 11225.

The Church of Saint Ignatius, Nostrand Ave and Carroll Street, Crown Heights, Brooklyn was used as a chapel of ease within the merged parish.

Blaise Parish (formerly the rectory of St. Francis of Assisi) is located around the corner from the church and school at 319 Maple Street.

"[2] The 18 tubular bells in the church were made by the J.C. Deagan Company of Chicago, which was a widely respected manufacturer of tuned percussion instruments ranging from church bells to vibraphones, and are controlled by an electrical keyboard and possibly paper rolls.

[8] Deagan's design was considered a "radical improvement in carillons for churches and public buildings, consisting of massive tubular bells, equipped with dampers to eliminate tone intermingling, controlled electrically, and playable both manually from keyboard and automatically from perforated paper rolls, under clock control.

[12] The school building, located on the corner of Nostrand Avenue and Lincoln Road, is adjacent to the parish church of St. Francis of Assisi/St.