Ravi Zacharias (26 March 1946 – 19 May 2020) was an Indian-born Canadian-American Christian apologist. Zacharias was the author of more than 30 books revolving around Christianity, including the Evangelical Christian Publishers Association's Gold Medallion Book Award winner Can Man Live Without God? in the category "theology and doctrine"and Christian bestsellers Light in the Shadow of Jihad and The Grand Weaver. Zacharias was the founder and chairman of the board of Ravi Zacharias International Ministries (RZIM) and host of the radio programs Let My People Think and Just Thinking.
During his teen years, he was an atheist; he converted to Christianity only after his 1963 suicide attempt, at which point a member of a Christian church visited him and advised him to read the Gospel of John.
During the Vietnam War, he conducted Evangelical missionary work with members of both the Viet Kong and the United States military. He later began a ministry in Ontario, Canada.
Born in British-controlled India, he later settled in Atlanta, Georgia, USA. Following their 1972 marriage, he and his wife Margaret welcomed two daughters (Naomi and Sarah) and one son (Nathan).
On the invitation of American Christian Evangelist Billy Graham, he attended a 1983 evangelists' gathering in Amsterdam.
Zacharias was passionate about reaching students around the world with the message of Jesus Christ.