Æðey (Icelandic pronunciation: [ˈaiːðˌeiː] ^ⓘ) (a.k.a. "Aedey Island") is a small island in the Westfjords region of Iceland.^[1] It measures approximately 2 by 0.5 kilometres (1+1⁄4 mi × 1⁄4 mi), and the highest point is at an elevation of about 18 m (59 ft).

It is inhabited by a single family and is a private family farm focused on environmentally sound eider down farming.^{[2][citation needed]}

The lighthouse^[2] was built in 1944, (operating since 1949) near the southernmost point of the island.

Æðey is important in the history of Iceland and especially of the Westfjords region.^{[dubious – discuss][citation needed]}