San Cristobal Island (, "St. Christopher Island") typically refers to one of the Galapagos Islands in Ecuador.
It may also refer to: Makira, formerly San Cristóbal, the largest island of Makira-Ulawa Province in the Solomon Islands Saint Kitts, known in Spanish as San Cristóbal
See also Saint Christopher Island (disambiguation) Cristóbal Island, an island in the Bocas del Toro archipelago in Panama