Obligation to Negotiate Access to the Pacific Ocean (Bolivia v. Chile) was a case at the International Court of Justice. In the case, Bolivia petitioned the Court for a writ of mandamus obligating Chile to negotiate with Bolivia to restore Bolivia's access to the Pacific Ocean, which it had lost to Chile in 1879 during the War of the Pacific.

Bolivia has filed a lawsuit against Chile at the International Court of Justice in The Hague to reclaim access to the Pacific Ocean. Bolivia lost access to the coastline in a 19th Century war with Chile, leaving it landlocked ever since. Chile says Bolivia's demand has no historical or legal basis.

Landlocked Bolivia lost access to the sea in 1884 after a war with Chile and has tried to regain it ever since. The court said Chile was not obliged to negotiate granting Bolivia access. The ruling, which comes after five years of deliberations, is final and binding.

Bolivian President Evo Morales has said his country will file a suit against Chile over a water dispute at the International Court of Justice (ICJ). Bolivia says it owns the Silala spring in a border region and that it is not being compensated by Chile for the use of its waters. But Chile says it is an international waterway of shared use.