Trumpkin is a fictional character in C. S. Lewis' fantasy novel series The Chronicles of Narnia. Trumpkin is an intensely practical and skeptical dwarf who lives during the reigns of King Miraz and King Caspian X. He is a major character in Prince Caspian, briefly mentioned in The Voyage of the Dawn Treader, and is a minor character in The Silver Chair.

Prince Caspian is a high fantasy novel for children by C. S. Lewis, published by Geoffrey Bles in 1951. It was the second published of seven novels in The Chronicles of Narnia (1950–1956), and Lewis had finished writing it in 1949, before the first book was out. It is volume four in recent editions of the series, sequenced according to the internal chronology of the books. Like the others, it was illustrated by Pauline Baynes and her work has been retained in many later editions.