Which Is Landlocked: Colombia or Bolivia? Only Bolivia.

Bolivia is landlocked. Colombia is NOT landlocked.

Bolivia (Landlocked)

• Lost Pacific coast to Chile in **War of the Pacific (1879–1884)**.
• Borders: Brazil (N/E), Paraguay (SE), Argentina (S), Chile (SW), Peru (W).
• **No coastline.** Access to Atlantic via Paraguay-Paraná waterway (negotiated). Pacific access via Chile (contentious).
• **Only landlocked country in South America** (Paraguay is the other).

Colombia (Coastal on TWO Oceans)

• Caribbean Sea (North): 1,000+ mi coast. Ports: Cartagena, Barranquilla, Santa Marta.
• Pacific Ocean (West): 800+ mi coast. Port: Buenaventura.
• Borders: Panama (NW), Venezuela (E), Brazil (SE), Peru (S), Ecuador (SW).
• **Maritime power** – controls key Caribbean/Pacific routes.

Source Error: The original text incorrectly stated "Colombia and Bolivia are both landlocked." Colombia has extensive coastlines on both the Caribbean and Pacific. Bolivia is the landlocked one (along with Paraguay).