Goat Island, also known as Mokuʻauia, is a flat islet consisting of lithified dunes in Laie Bay on the northeast shore of Oahu, Hawaii.

[1][2][3] The islet is separated from Malaekahana State Recreation Area by a 720 feet (220 m) channel of limestone reef shelf 1 metre (3.3 ft) underwater.

[3] Goat Island is home to 16 native plant species, including the federally endangered Sesbania tomentosa.

[1][4][7] Black rats were first documented on the islet in 1967 with multiple eradication attempts in the 1990s and 2000s.

[4] The dunes of the islet are a designated State Seabird Sanctuary, but its three beaches remain accessible to the public and attract many people annually.