Mu'jam al-buldan (Arabic: معجم البلدان Dictionary of Countries) is a book by Yaqut al-Hamawi, a Muslim scholar who is famous for his encyclopedic books. Al-Hamawi started the book in 1224 and finished in 1228, one year before he died.
The book is a kind of "literary geography", because the book covers the history, ethnography, and myths related to the places.