圣卢西亚岛是西非国家佛得角的岛屿，属于向风群岛的一部分，位于圣尼古劳岛和圣维森特岛之间，长13公里、宽5公里，面积35平方公里，最高点海拔高度395米，岛上建有气象站。

Santa Luzia is an island of the Barlavento archipelago in Cape Verde located between São Nicolau and São Vicente, the channel of Santa Luzia separates the island of São Vicente and is 8 km long. The area is 35 km² (some reads 34 km²). Like all Cape Verdean islands, it island is of volcanic origin. The highest point is Monte Grande elevating 395 m, the second elevating 344 m and the third elevating 337 m, other mountain tops include Agua Doce or Agua Dolce (315 m) and the fifth tallest is Monte Espia located to the south elevating 294 m. Hills named Crioulo (also as Creoulo) is in the east and elevates 85 m and Topino da Praia elevating 19 m. Santa Luzia is 12.3 km long and 5.3 km wide.