Lappajärvi

{{Infobox settlement

|name = Lappajärvi

| official_name = {{lang|fi|Lappajärven kunta}}
{{lang|sv|Lappajärvi kommun}}

| settlement_type = Municipality

| image_skyline = LappajärviMontage 2014.png

| image_shield = Lappajärvi.vaakuna.svg

| shield_size = 120x80px

| image_map = Lappajärvi_sijainti_Suomi.svg

| map_caption = Location of Lappajärvi in Finland

|coordinates = {{coord|63|13|N|023|38|E|display=inline,title}}

|subdivision_type = Country

|subdivision_name = {{flag|Finland}}

| subdivision_type1 = Region

| subdivision_name1 = Southern Ostrobothnia

| subdivision_type2 = Sub-region

| subdivision_name2 = Järviseutu

| leader_title = Municipal manager

| leader_name = Sami Alasara

| established_title = Charter

| established_date = 1865

|area_footnotes = {{Data Finland municipality|area_footnotes|Lappajärvi}}

|area_total_km2 = {{Data Finland municipality|area_total_km2|Lappajärvi}}

|area_land_km2 = {{Data Finland municipality|area_land_km2|Lappajärvi}}

|area_water_km2 = {{Data Finland municipality|area_water_km2|Lappajärvi}}

|area_rank = {{Data Finland municipality|area_rank|Lappajärvi}}

|population_as_of = {{Data Finland municipality|population_as_of|Lappajärvi}}

|population_footnotes = {{Data Finland municipality|population_footnotes|Lappajärvi}}

|population_total = {{Data Finland municipality|population_total|Lappajärvi}}

|population_density_km2 = {{Data Finland municipality|population_density_km2|Lappajärvi}}

|population_rank = {{Data Finland municipality|population_rank|Lappajärvi}}

|demographics_type1 = {{Data Finland municipality|demographics_type1|Lappajärvi}}

|demographics1_footnotes = {{Data Finland municipality|population_footnotes|Lappajärvi}}

|demographics1_title1 = {{Data Finland municipality|demographics1_title1|Lappajärvi}}

|demographics1_info1 = {{Data Finland municipality|demographics1_info1|Lappajärvi}}

|demographics1_title2 = {{Data Finland municipality|demographics1_title2|Lappajärvi}}

|demographics1_info2 = {{Data Finland municipality|demographics1_info2|Lappajärvi}}

|demographics1_title3 = {{Data Finland municipality|demographics1_title3|Lappajärvi}}

|demographics1_info3 = {{Data Finland municipality|demographics1_info3|Lappajärvi}}

|demographics1_title4 = {{Data Finland municipality|demographics1_title4|Lappajärvi}}

|demographics1_info4 = {{Data Finland municipality|demographics1_info4|Lappajärvi}}

|demographics_type2 = {{Data Finland municipality|demographics_type2|Lappajärvi}}

|demographics2_footnotes = {{Data Finland municipality|demographics2_footnotes|Lappajärvi}}

|demographics2_title1 = {{Data Finland municipality|demographics2_title1|Lappajärvi}}

|demographics2_info1 = {{Data Finland municipality|demographics2_info1|Lappajärvi}}

|demographics2_title2 = {{Data Finland municipality|demographics2_title2|Lappajärvi}}

|demographics2_info2 = {{Data Finland municipality|demographics2_info2|Lappajärvi}}

|demographics2_title3 = {{Data Finland municipality|demographics2_title3|Lappajärvi}}

|demographics2_info3 = {{Data Finland municipality|demographics2_info3|Lappajärvi}}

|blank_name = {{Data Finland municipality|blank_name|Lappajärvi}}

|blank_info = {{Data Finland municipality|blank_info|Lappajärvi}}

|timezone = EET

|utc_offset = +02:00

|timezone_DST = EEST

|utc_offset_DST = +03:00

| website = {{Url|https://lappajarvi.fi/}}

}}

Lappajärvi is a municipality in Finland in Southern Ostrobothnia region. It is {{convert|78|km}} from Lappajärvi to Seinäjoki, {{convert|80|km}} to Kokkola and {{convert|117|km}} to Vaasa. The municipality has a population of {{formatnum: {{Data Finland municipality/population count|Lappajärvi}}}} ({{#time: j F Y|{{Data Finland municipality/population count|sourcedate}} }}) and covers an area of {{convert|{{Data Finland municipality/total area|Lappajärvi}}|km2}} of which {{convert|{{Data Finland municipality/waters area|Lappajärvi}}|km2|abbr=on}} is water. The population density is

{{convert|{{Data Finland municipality/population density|Lappajärvi|round=2}}|PD/km2}}.

The municipality is unilingually Finnish.

Lake Lappajärvi, which gives the name to the municipality, is a meteor crater, one of the few meteor crater lakes found in Finland.

Singer and performer, Timo Kotipelto from the worldwide known Finnish power metal band Stratovarius was born and raised in Lappajärvi.