Chrissi (Greek: Χρυσή, "golden", also Γαϊδουρονήσι - Gaidouronisi "donkey island") is an uninhabited Greek island approximately 15 kilometres (9 miles) south of Crete close to Ierapetra in the Libyan Sea. Approximately 700 m east of the island is the island of Mikronisi. Administratively these islands fall within the Ierapetra municipality in Lasithi.
It is possible to visit Chrissi by sea from Ierapetra and from Myrtos. There is a nudist beach on the north coast of the island. The highest point on the island is called Kefala ("head") and it is 31 m above sea-level. On the western part of the island is the chapel of Saint Nicholas (estimated to date to the 13th century). There are also a salt pan, an old port, some Minoan ruins, a lighthouse and a Roman cemetery. Due to the shallow waters around Chrissi, snorkelling and diving is a popular pastime. The Belegrina, Hatzivolakas, and Kataprosopo bays have a wide diversity of shells.
It is possible to reach the island from Ierapetra between middle of May and late October.