John Wesley Haley (August 25, 1878, Bracebridge, Ontario, Canada - January 26, 1951, Cleveland, Ohio, USA) was pastor, missionary and mission strategist.
He grew up in a farming family near Sarnia, Ontario, was involved in church planting in Saskatchewan, worked as a missionary in Mozambique, South Africa, and Burundi.
Haley was profoundly influenced by the writings of Roland Allen and the idea of the indigenous church principle in cross-cultural mission strategy.
In 1898, John Haley was converted at a Free Methodist camp meeting held on his father's farm in Lambton County, Ontario.
As previously arranged, Esther Jane (Jennie) Hamilton, who was born in Charlemont, Ontario, June 24, 1877, joined him in 1905 and they married on March 15, 1905, in Fairview, near Umzumbe, Natal, South Africa.
Planning to retire in South Africa in the spring, John Wesley Haley died at his daughter's home in Cleveland, Ohio on January 26, 1951, at the age of 72 and was buried in Welland, Ontario.