The Flag of Cuenca, Ecuador, is a rectangular bicolor flag consisting of three equal vertical bands. The left and right bands are yellow, representing the sun and the Incan Empire, while the central band is blue, symbolizing the azure skies and waters of the river Tomebamba. A white crescent moon, pointing toward the hoist side, appears in the upper-left corner of the central band. This flag was officially adopted on September 21, 1906, and serves as a visual emblem for Cuenca, the third-largest city in Ecuador, known for its rich history, colonial architecture, and beautiful landscapes.