What middle name appears in the full name of C.S. Lewis?

The middle name in C.S. Lewis’s full name is Staples. His full name was Clive Staples Lewis, although he became internationally known by his initials, C.S. Lewis.

Lewis was born in Belfast in 1898 and spent much of his career as a scholar of English literature. The name “Clive” was also not the name he usually used among friends. During childhood, he adopted the nickname “Jack,” derived from the name of a childhood dog named Jacksie.

The initials C.S. Lewis became associated with works ranging from Christian apologetics to fantasy literature. Readers sometimes confuse his middle name with “Clive,” his first name, or with “Hamilton,” the surname he used for a literary pseudonym. “Staples” is the specific middle name recorded in biographies and reference works.