韦塔岛是印度尼西亚马鲁古省的岛屿，位于小巽他群岛以东，是西南群岛最大的岛屿，东西端和南北端分别相距130公里和45公里，面积3,600平方公里，最高点海拔1,412米，南面56公里是帝汶岛。韦塔岛居民大多信奉伊斯兰教，小部分则信奉基督教。

Wetar is a tropical island which belongs to the Indonesian province of Maluku and is the largest island of the Barat Daya Islands (literally Southwest Islands). It lies east of the Lesser Sunda Islands, which include nearby Alor and Timor, but it is politically part of the Maluku Islands. To the south, across the Wetar Strait, lies the island of Timor; at its closest it is 50 km away. To the west, across the Ombai Strait, lies the island of Alor. To the southwest is the very small island of Liran, which is also part of Wetar district (kecamatan) and, further southwest, the small East Timorese island of Atauro. To the north is the Banda Sea and to the east lie Romang and Damar Islands, while to the southeast lie the other principal islands of the Barat Daya Islands.