Francis August Schaeffer (30 January 1912 – 15 May 1984) was an American Evangelical Christian theologian, philosopher, and Presbyterian pastor. He is most famous for his writings and his establishment of the L’Abri community in Switzerland. Opposed to theological modernism, Schaeffer promoted a more historic Protestant faith and a presuppositional approach to Christian apologetics which he believed would answer the questions of the age. A number of Christian leaders, authors, and evangelists credit Schaeffer’s ideas with helping spark the rise of the Christian Right in the United States and were strongly influenced by him.
Schaeffer died of lymphoma on May 15, 1984, in Rochester, Minnesota. Schaeffer’s wife, Edith (Seville) Schaeffer, has become a prolific author in her own right.