科尔特岛（Koltur），法罗群岛岛屿，位于斯特莱默岛西南方，马岛以北。总面积2.8平方公里。岛上人口2人（2007年）。

Koltur is an island in the Faroe Islands, located to the west of Streymoy and to the north of Hestur. The island has just one settlement, Koltur. It was abandoned in the 1980s by the sheep-farmers whose flocks grazed on the southern part of the island. Since then only two people have returned (in 1994). Koltur has two mountains, Kolturshamar (478 m) and Fjallið (101m) which strictly speaking isn't a mountain, the name however translates directly as "The Mountain" and is considered by many as the smallest mountain in the country.