What was the full name of the British author known as C.S. Lewis?

The full name of the British author known as C.S. Lewis was Clive Staples Lewis.

Lewis was born in Belfast, Ireland, in 1898 and used his initials professionally. The initials came from his first and middle names, Clive Staples, rather than representing a pen name.

His friends and family often called him Jack, a nickname he adopted after childhood tragedy. Lewis became known for Christian apologetics, literary criticism, and fiction, especially The Chronicles of Narnia.

He is sometimes confused with American writer C.S. Forester, whose initials were also part of his literary identity, but they were different authors. Lewis’s name appears on works including Mere Christianity, The Four Loves, and The Screwtape Letters.