What Christian denomination did C.S. Lewis belong to for most of his adult life?

C.S. Lewis belonged to the Church of England for most of his adult life.

Lewis was raised in the Church of Ireland, the Anglican church in Ireland, but he became an atheist during his adolescence. His return to Christianity developed during the 1920s. He described conversations and friendships with fellow Oxford academics, including J.R.R. Tolkien and Hugo Dyson, as important influences in this process. By 1931, Lewis had returned to Christianity.

He identified as an Anglican rather than as a Roman Catholic or an Eastern Orthodox Christian. His writings often aimed to present what he called “mere Christianity,” meaning beliefs shared across many historic Christian traditions. That broad approach made his work influential among Christians from different denominations, but it did not change his own Anglican affiliation. Lewis also attended services at Holy Trinity Church, Headington, in Oxford, where he is buried.