Åsunden, Västergötland

{{Infobox lake

| name = Åsunden

| image = Suecia 3-043 ; Bogsund (Ulricehamn).jpg

| image_size = 250

| alt = Historical woodcut

| caption = Ulricehamn (then Bogesund) around 1700, viewed from the south. The lake on the left

| image_bathymetry =

| caption_bathymetry =

| location = Västergötland

| coords = {{coord|57|44|N|13|23.25|E|region:SE_type:waterbody|display=inline,title}}

| type =

| inflow =

| pushpin_map = Sweden

| pushpin_map_alt = Location of lake

| outflow = Ätran

| catchment =

| basin_countries = Sweden

| length =

| width =

| area = {{convert|34|km2|abbr=on}}

| depth =

| max-depth =

| volume =

| residence_time =

| shore =

| elevation =

| islands =

| cities = Ulricehamn

}}

Åsunden ({{IPA|sv|ˈôːˌsɵnːdɛn}}){{cite book|url=https://runeberg.org/ortnamn/0033.html|author1=Jöran Sahlgren|author2=Gösta Bergman|title=Svenska ortnamn med uttalsuppgifter|language=sv|year=1979|page=29}} is a lake in Västergötland, Sweden.

The lake is known from the Battle of Bogesund which took place on the ice and shore of the lake on 19 January 1520. Christian II of Denmark prevailed over the Swedish regent Sten Sture the Younger, who was mortally injured. Christian went on to be crowned King of Sweden later that year.{{cite book |last1=Lockhart |first1=Paul Douglas |title=Denmark, 1513-1660 : the rise and decline of a Renaissance monarchy |date=2007 |publisher=Oxford University Press |isbn=9780199271214| page=17}}