Korthio

{{Infobox Greek Dimos

|name = Korthio

|name_local = Κόρθιο

|type = municipal unit

|image_map = DE Korthiou.svg

|map_caption = Location within the Cyclades

|periph = South Aegean

|periphunit = Andros

|municipality = Andros

|pop_municunit = 1706

|population_as_of = 2021

|area_municunit = 81.9

|elevation =

|coordinates = {{coord|37|46|N|24|56|E|format=dms|display=inline,title}}

|postal_code =

|area_code =

|licence = EM

|website =

|image_skyline =

|caption_skyline =

}}

Korthio ({{langx|el|Κόρθιο}}) is a former municipality on the island of Andros, in the Cyclades, Greece. Since the 2011 local government reform it is part of the municipality Andros, of which it is a municipal unit.{{Cite web|url=http://www.et.gr/idocs-nph/search/pdfViewerForm.html?args=5C7QrtC22wGYK2xFpSwMnXdtvSoClrL81-32jgAMSfbnMRVjyfnPUeJInJ48_97uHrMts-zFzeyCiBSQOpYnT00MHhcXFRTsb2fGphpq4MKX2ZkaHobySNnvZCNHXvYVvlf80XevW0Q.|title=ΦΕΚ B 1292/2010, Kallikratis reform municipalities|language=el|publisher=Government Gazette}} Its population was 1,706 inhabitants at the 2021 census, and its land area is 81.918 km².{{cite web|url=http://dlib.statistics.gr/Book/GRESYE_02_0101_00098%20.pdf |publisher=National Statistical Service of Greece |title=Population & housing census 2001 (incl. area and average elevation) |language=el |url-status=dead |archiveurl=https://web.archive.org/web/20150921212047/http://dlib.statistics.gr/Book/GRESYE_02_0101_00098%20.pdf |archivedate=2015-09-21 }} It shares the island of Andros with the municipal units of Andros and Ydrousa.