Lake Bonney SE
General data
- Name: Lake Bonney SE
- Water system: Southern ocean
- Water type: Natural lake
- Progression: Southern ocean -> Planet Earth
- Climates: Arid (desert)
- Continents: Australia & Oceania
- Countries: Australia
Lake Bonney SE (alternative name: Coonunda or Canunda) is a coastal freshwater lake located in the Limestone Coast region of South Australia in the gazetted locality of Canunda. It has a surface area of 79 square kilometres. The lake is located 450 km south east of Adelaide and 13 km south west of Millicent. The Canunda National Park lies adjacent to the lake shore.