Chilov (Azerbaijani: Çilov adası, also spelt Zhiloy and Jiloi) is an island in the Caspian Sea.

Administratively, Chilov Island belongs to the Khazar district of Baku.

The island is 10 km (6 mi) across and has an irregular shape with various headlands and inlets.

[2] The island forms part of the Absheron archipelago Important Bird Area (IBA), designated as such by BirdLife International because it supports significant populations of wintering whooper swans, common pochards, tufted ducks, great crested grebes and common coots, as well as breeding Caspian gulls.

[3] Oil and gas deposits were discovered near Chilov island by Russian Rear Admiral Count Mark Voynovich while he led an expedition to the Caspian Sea in 1781.