努库奥罗环礁是西太平洋岛国密克罗尼西亚联邦的环礁，属于加罗林群岛的一部分，由44个岛屿组成，直径6公里，土地面积1.67平方公里，潟湖面积27.25平方公里，2007年人口372。

Nukuoro is an atoll in the Federated States of Micronesia.

It is a municipality of the state of Pohnpei, Federated States of Micronesia. Except for Kapingamarangi, it is the southernmost atoll of the country. They both are Polynesian outliers. As of 2007, Nukuoro had a population of 372, though several hundred Nukuorans live on Pohnpei. The total area, including the lagoon, is 40 km (15 sq mi), with a land area of 1.7 km (0.66 sq mi), which is divided among more than 40 islets that lie on the northern, eastern, and southern sides of the lagoon. By far, the largest islet is Nukuoro islet, which is the center of population and the capital of the municipality.