Kastania, Trikala

{{Infobox Greek Dimos

|name = Kastania

|name_local = Καστανιά

|type = municipal unit

|image_map = DE Kastanias.svg

|map_caption = Location within the regional unit

|periph = Thessaly

|periphunit = Trikala

|municipality = Meteora

|pop_municunit = 652

|pop_community = 145

|population_as_of = 2021

|area_municunit = 149.8

|elevation =

|coordinates = {{coord|39|43|N|21|23|E|format=dms|display=inline,title}}

|postal_code =

|area_code =

|licence = ΤΚ

|website =

|image_skyline =

|caption_skyline =

}}

Kastania ({{langx|el|Καστανιά}}) is a former municipality in the Trikala regional unit, Thessaly, Greece. Since the 2011 local government reform it is part of the municipality Meteora, of which it is a municipal unit.{{Cite web|url=http://www.et.gr/idocs-nph/search/pdfViewerForm.html?args=5C7QrtC22wGYK2xFpSwMnXdtvSoClrL8-SrPzKAEPjjtIl9LGdkF53UIxsx942CdyqxSQYNuqAGCF0IfB9HI6hq6ZkZV96FIukI0UzcPsWCK0LpLhpa7rhiWB4R5ntTnoWw7U8E1Amg.|title=ΦΕΚ A 87/2010, Kallikratis reform law text|language=el|publisher=Government Gazette}} The municipal unit has an area of 149.808 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 }} Population 652 (2021).

The village Kastanea is home to Vlachs.