Smith Wigglesworth (1859 - 1947), was a British religious leader and an important figure in the early history of Pentecostalism.
Wigglesworth left his job as a plumber to become a faith healer. He was an early Charismatic theologian and minister, who wrote a number of works on tongues and other gifts of the Holy Spirit. He is considered one of the most influential evangelists in the early history of Pentecostalism and is also credited with helping give it a large religious audience. He defended and gave arguments for many of his beliefs in his book Ever Increasing Faith.