Viannos

{{Infobox Greek Dimos

|name = Viannos

|name_local = Βιάννος

|type = municipality

|image_map = 2011 Dimos Viannou.png

|image_skyline = Ano Viannos in 2012.jpg

|caption_skyline = Ano Viannos

|city_flag =

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|coordinates = {{coord|35|03|N|25|25|E|format=dms|display=inline,title}}

|elevation_min =

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|periph = Crete

|periphunit = Heraklion

|pop_municipality = 4436

|area_municipality = 221.5

|districts =

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|party =

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|population_as_of = 2021

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Viannos ({{langx|el|Βιάννος}}) is a municipality in the Heraklion regional unit, Crete, Greece. The municipality has an area of {{convert|221.539|km2|abbr=on}}.{{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}} Population 4,436 (2021). The seat of the municipality is in Ano Viannos.

In September 1943, German occupation forces inflicted heavy loss of life and property on the region of Viannos in reprisal for its support of the Cretan resistance.

In late July 2012, the area was hit by wildfires which caused severe damage in crops and livestock.[http://www.kathimerini.gr/4dcgi/_w_articles_kathremote_1_31/07/2012_454632 Σε ύφεση η πυρκαγιά στη Βιάννο Ηρακλείου, Καθημερινή onLine, 31 Ιουλίου 2012]