What was the name of the literary group C.S. Lewis attended at Oxford?

The literary group C.S. Lewis attended at Oxford was The Inklings.

The Inklings was an informal discussion group associated with Oxford writers and scholars. It met mainly during the 1930s and 1940s, often at The Eagle and Child pub, known to members as the Bird and Baby, and in Lewis’s rooms at Magdalen College. The group was not a formal society with a fixed membership list or constitution.

Lewis was one of its central figures, and J.R.R. Tolkien was another prominent member. Members commonly read aloud from works in progress and discussed literature, mythology, language, and Christian ideas. Tolkien’s drafts of The Lord of the Rings and Lewis’s developing fiction are often connected with these meetings.

The group’s name was a playful reference to people who were “inklings,” or those with ideas. It should not be confused with a publishing house or an official Oxford club. Several writers participated at different times, including Charles Williams, Owen Barfield, and Dorothy L. Sayers as an occasional visitor.