Smith Wigglesworth was a British evangelist who was influential in the early history of Pentecostalism.

Smith Wigglesworth was born on 10 June 1859 in Menston, Yorkshire, England, to an impoverished family. As a small child, he worked in the fields pulling turnips alongside his mother; he also worked in factories to help provide for his family. He was illiterate as a child, being unschooled because of his labours.

Nominally a Methodist, he became a born again Christian at the age of eight. His grandmother was a devout Methodist; his parents, John and Martha, took young Smith to Methodist and Anglican churches on regular occasions. He was confirmed by a Bishop in the Church of England, baptized by immersion in a Baptist church and had grounding in Bible teaching in the Plymouth Brethren while learning the plumbing trade as an apprentice from a man in the Brethren movement.

Wigglesworth married Mary Jane "Polly" Featherstone on 4 December 1882 at St Peter's church, Bradford. At the time of their marriage, she was a preacher with the Salvation Army and had come to the attention of General William Booth. They had one daughter, Alice, and four sons, Seth, Harold, Ernest and George. Polly died in 1913. Their grandson, Leslie Wigglesworth, after more than 20 years as a missionary in the Congo, served as the president of the Elim Pentecostal Church.

Wigglesworth learned to read after he married Polly; she taught him to read the Bible. He often stated that it was the only book he ever read, and did not permit newspapers in his home, preferring the Bible to be their only reading material.

Wigglesworth worked as a plumber, but he abandoned this trade because he was too busy for it after he started preaching. In 1907, Wigglesworth visited Alexander Boddy during the Sunderland Revival, and following a laying-on of hands from Alexander's wife, Mary Boddy, he experienced Baptism with the Holy Spirit and spoke in tongues. He spoke at some of the Assemblies of God events in Great Britain. He also received ministerial credentials with the Assemblies of God in the United States, where he evangelized from 1924 to 1929.

He died at the funeral of his close friend, Wilf Richardson, on 12 March 1947, at the age of 87.