Syrna is a mountain village and a community in the municipal unit of Trikolonoi, western Arcadia, Greece. Syrna is situated on a mountain slope above the right bank of the river Alfeios, at about 800 m elevation. In 2001 Syrna had a population of 188 for the village and 210 for the community, which includes the village Ano Kalyvia. Syrna is 2 km northwest of Palamari, 4 km southeast of Elliniko, 6 km northeast of Karytaina and 6 km southeast of Stemnitsa.
Syrna or Sirna is a small island about 4 km in area to the south-east of Astypalaia in the Dodecanese group of Greek islands near the south-west coast of Turkey. It is mostly covered with juniper and garrigue scrub. The few inhabitants raise stock, catch fish and practice arable agriculture. The island is important for migrant and breeding seabirds and raptors, including Cory's shearwater, yelkouan shearwater and Eleonora's falcon.
A shipwreck of the late Roman period (2nd century CE) was found using sonar technology near the island by the Hellenic Centre for Marine Research in 2000."Cooperation of the Hellenic Centre of Marine Research (HCMR) – with the Department of Underwater Antiquities (EEA)" Hellenic Centre of Marine Research. Retrieved 20 Jan 2009
On 7 December 1946, the ship Athina Rafiah carrying Jewish immigrants to Palestine was wrecked in the Agiou Soassin Bay, on the south coast of Syrna, and more than seven hundred survivors came ashore on the island. The British minesweeper HMS Providence, working with HMS Chevron, HHMS Themistocles and HHMS Aegean managed to rescue the survivors.