Paul David Washer (born 1961) is an American Christian Evangelist and author whose theology is rooted in Calvinism. He is known for delivering passionate sermons about faith and the authority of the Christian Bible.Washer reports converting to Christianity while studying at the University of Texas at Austin to become an oil and gas lawyer. He moved to Peru and served there as a missionary for 10 years. In 1988, while in Peru, Washer founded the HeartCry Missionary Society to support indigenous missionaries witnessing to people of their own cultures. As of 2023, the organization supported 326 missionary families in 62 countries.