Richard Duane "Rick" Warren (born January 28, 1954 in San Jose, California) is an American evangelical Christian minister and author. He is the founder and senior pastor of Saddleback Church, an evangelical megachurch located in Lake Forest, California, currently the eighth-largest church in the United States (this ranking includes multi-site churches). He is also a bestselling author of many Christian books, including his guide to church ministry and evangelism, The Purpose Driven Church, which has spawned a series of conferences on Christian ministry and evangelism. He is perhaps best known for the subsequent devotional (devotional song), The Purpose Driven Life, which has sold over 30 million copies, making Warren a New York Times bestselling (bestseller) author.

Warren holds conservative theological views. While holding traditional evangelical views on social issues such as abortion, same-sex marriage, and stem-cell research, Warren has called on churches worldwide to also focus their efforts on fighting poverty and disease, expanding educational opportunities for the marginalized, and caring for the environment. During the 2008 United States presidential election (United States presidential election, 2008), Warren hosted the Civil Forum on The Presidency at his church with both presidential candidates, John McCain and Barack Obama. Obama later sparked controversy when he asked Warren to give the invocation at the presidential inauguration (Barack Obama 2009 presidential inauguration) in January 2009.