Lake Monowai

{{Short description|Lake in Southland Region, New Zealand}}

{{Use New Zealand English|date=April 2024}}

{{Use dmy dates|date=August 2020}}

{{Infobox body of water

| name = Lake Monowai

| image = Lake Monowai, New Zealand - September 2005.jpg

| alt= Lake Monowai

| caption = Lake Monowai

| image_bathymetry =

| caption_bathymetry =

| location = Southland District, Southland Region, South Island

| coords = {{coord|45|52|S|167|27|E|region:NZ_type:waterbody|display=inline,title}}

| image_map ={{Infobox mapframe |zoom=9|point=none|shape-fill-opacity=0|stroke-width=1|stroke-color=#0000ff}}

| pushpin_map = New Zealand#New Zealand South Island

| pushpin_map_alt= Location of Lake Monowai

| type =

| inflow =

| outflow = Monowai River

| catchment =

| basin_countries = New Zealand

| length =

{{convert|19|km|mi|abbr=on}}

| width =

{{convert|1.6|km|mi|abbr=on}}

| area ={{convert|31|km2|sqmi|abbr=on}}

| depth =

{{convert|71|m|ft|abbr=on}}

| max-depth =

{{convert|158.5|m|ft|abbr=on}}

| volume =

{{convert|2.2|km3|cumi|abbr=on}}

| residence_time =

| shore =

| elevation ={{convert|196|m|ft|abbr=on}}

| islands =

| cities =

}}

Lake Monowai (officially Monowai Lake; {{langx|mi|Manokīwai}}) is a large lake ({{convert|31|sqkm|disp=or}}) in the southern part of Fiordland National Park, in New Zealand's South Island, 120 kilometres northwest of Invercargill.{{LINZ|id=number|name=|accessdate=10 August 2020}} At an altitude of 196 metres in a long curved valley, the lake appears on maps shaped like a letter "U". The western part of the lake is set in beautiful mountainous country. It is drained in the northeast by the short Monowai River, which enters the Waiau River eight kilometres to the northeast.

{{wide image|Lake monowai.jpg|700px|Lake Monowai panorama||none}}