Chile's Neighbors: The Three Countries Bordering the Longest Nation in South America

Chile’s unique ribbon-like geography stretches over 4,300 kilometers along the western edge of South America, giving it just three land neighbors:

• Peru to the north
• Bolivia to the northeast
• Argentina to the east, along the Andes Mountains—the world’s third-longest international border.

To the west, the Pacific Ocean forms a natural boundary. This isolation by mountains and sea has shaped Chile’s history, economy, and distinct national identity.