Petalax
{{Infobox settlement
|name = Petalax
|official_name = {{lang|sv|Petalax kommun}}
{{lang|fi|Petolahden kunta}}
|native_name = {{lang|sv|Petalax}} – {{lang|fi|Petolahti}}
|settlement_type = Town, former municipality
|image_shield = Petolahti.vaakuna.svg
|image_map = Petolahti.sijainti.suomi.svg
|mapsize = 150px
|map_caption = The location of Petalax, Finland
|pushpin_mapsize = 150px
|subdivision_type = Country
|subdivision_name = Finland
|subdivision_type1 = Region
|subdivision_name1 = Ostrobothnia
|subdivision_type2 = Sub-region
|subdivision_name2 = Vaasa sub-region
|established_date = 1926
|extinct_title = Consolidated
|extinct_date = 1973
|area_total_km2 = 117,5
|population_total = approx. 1200
|population_density_km2 = auto
|demographics1_info1 = %
|demographics1_info2 = %
|demographics1_info3 = %
|demographics1_info4 = %
|demographics2_title1 = 0 to 14
|demographics2_info1 = %
|demographics2_title2 = 15 to 64
|demographics2_info2 = %
|demographics2_title3 = 65 or older
|demographics2_info3 = %
|timezone = EET
|utc_offset = +2
|timezone_DST = EEST
|utc_offset_DST = +3
|coordinates = {{coord|62|50|20|N|21|25|23|E|region:FI_type:city(1320)_scale:50000}}
|postal_code_type = Postal code
|postal_code = 66240
}}
Petalax ({{langx|fi|Petolahti}}) is a former municipality in Ostrobothnia.{{cite web |title = Kommunstrukturen |url = http://www.obotnia.fi/medialibrary/data/Norrback-gruppens_betankande7-2-2006-%7B1rjky-nlcvt-hkbrv%7D.pdf |work = Kommun- och servicestrukturutredningen i landskapet Österbotten |publisher = Österbottens förbund - Pohjanmaan liitto |location = Helsinki |language = Swedish |format = PDF |date = 2006-02-06 |accessdate = 2009-05-18 }}{{dead link|date=March 2018 |bot=InternetArchiveBot |fix-attempted=yes }} The municipality was incorporated in Malax municipality in 1973.{{cite web |title = Finlands kommunvapen, Malax |url = http://www.kommunerna.net/k_perussivu.asp?path=255;264;522;86413;84472;84487 |publisher = Kuntaliitto - Kommunförbundet |location = Helsinki |language = Swedish |date = 2008-12-23 |accessdate = 2009-05-18 }}
Approximately 1,200 people live in Petalax and the main language is Swedish.