John Haggai (born February 27, 1924) is an American Christian evangelist, author, and founder of Haggai International. He is known for global evangelism and leadership training, focusing on equipping indigenous leaders to spread the Gospel. Haggai has written several books on evangelism and leadership, influencing Christian ministries worldwide. Born in Ohio, his early experiences shaped his passion for cross-cultural missions. Since its establishment in 1969, Haggai International has trained tens of thousands of leaders globally, emphasizing localization and sustainability.
