Symi also transliterated Syme or Simi (Greek: Σύμη) is a Greek island and municipality. It is mountainous and includes the harbor town of Symi and its adjacent upper town Ano Symi, as well as several smaller localities, beaches, and areas of significance in history and mythology. Symi is part of the Rhodes regional unit. The shipbuilding and sponge industries were substantial on the island and, while at their peak near the end of the 19th century, the population reached 22,500. Symi's main industry is now tourism and the population has declined to 2,500.
The island has become a haven for tourists from abroad, especially British and Italians, and is now the permanent home of about 120 non-Greek residents, some 50 of whom are British. The influx of tourists has led to the restoration of a great number of homes (many of which were destroyed during World War II); these restorations, by law, have to conform to "guidelines laid down by the Greek culture ministry's Archaeological Service."
Between 1998 and 2006, it is estimated that the price of a "ruin" on Symi increased fivefold. The growing population of British and other expatriates has led to demographic as well as political changes, since EU citizens are allowed to vote in local elections and have attempted to exert influence on the island's politics. Opinions on whether this is a sign of growing integration differ. There has been considerable restoration of many houses in Symi in the past decade, by architects including Haris A. Kalligas and Anastasia Papaioannou, both winners of the Europa Nostra Awards for their work on Symi and elsewhere in Greece.