Última Esperanza Sound (, ‘Last Hope Sound' or 'Inlet of Last Hope') is an inlet stretching from the mouth of Eberhard Fjord to the outskirts of Monte Balmaceda, within the Magallanes Basin. The navigator Juan Ladrillero named it so in 1557, because he felt it was this direction was his last chance to reach the Strait of Magellan. The inlet ends at a glacier, and not at the strait.