The 2020–21 Southern Hemisphere tropical cyclone season consists of three different tropical cyclone seasons south of the equator:
- 2020–21 South-West Indian Ocean cyclone season, west of 90°E
- 2020–21 Australian region cyclone season, from 90°E to 160°E
- 2020–21 South Pacific cyclone season, east of 160°E
Subtropical Storm Mani formed in the South Atlantic in this time period.