Pigeon Post is the sixth book in Arthur Ransome's Swallows and Amazons series of children's books, published in 1936. It won the first Carnegie Medal awarded for children's literature.
This book is one of the few Swallows and Amazons books that does not feature sailing. All the action takes place on and under the fells surrounding the Lake. Ransome made use of the mining and prospecting knowledge and experience of his friend, Oscar Gnosspelius, who features in the book as a character known as Squashy Hat.