Lake Afton
General data
- Name: Lake Afton
- Water system: Mississippi River
- Water type: Artificial lake
- Progression: Clearwater Creek -> South Fork Ninnescah River -> Ninnescah River -> Arkansas River -> Mississippi River -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Lake Afton is a 104 ha man-made recreational lake in Sedgwick County, Kansas, United States, and within the 2.9 km2 Lake Afton Park. Clearwater Creek is the stream that drains Lake Afton flows downstream to join the South Fork Ninnescah River system (part of the Arkansas River watershed).