Luganville is the second largest city in Vanuatu after the capital Port Vila; it is located on the island of Espiritu Santo and has a population of 18,062 as of the 2020 census. Those on Vanuatu's northern islands who regard Luganville as their big city, particularly indigenous populations, call it Santo; rural residents of Espiritu Santo call it Kanal. Luganville served as a major base of operations for American troops during World War II.

Vanuatu, officially the Republic of Vanuatu, is an island country in Melanesia, located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is 1,750 km (1,090 mi) east of northern Australia, 540 km (340 mi) northeast of New Caledonia, east of New Guinea, southeast of Solomon Islands, and west of Fiji.