Foy Esco (Foy E., Jr.) Wallace (30 September 1896 – 18 December 1979) was an influential figure among American churches of Christ in the early-to-middle 20th century.
Through his writing and speaking, Wallace gathered a considerable following among this autonomous group of churches; his combination of the skilled use of logic combined with charisma propelled him to the forefront of at least three major controversies within churches of Christ.