诺穆卡岛是太平洋岛国汤加的岛屿，属于哈派群岛的一部分，面积7平方公里，该岛中心有一个湖泊，主要经济活动有渔业和农业，居民人口约400至500。

Nomuka is a small island in the southern part of the Haʻapai group of islands in the Kingdom of Tonga. It is part of the Nomuka Group of islands, also called the ʻOtu Muʻomuʻa.

Nomuka, is 7 square kilometres in area and contains a large(Ano Lahi), brackish lake in the middle, and also three other smaller lakes—Ano Ha'amea, Ano Fungalei, and Molou. There are approximately 400-500 inhabitants who subsist on fishing, farming, and remittances from family members abroad. The island has a secondary school, two primary schools, and a kindergarten. It also has seven churches.