← 2020 2019 2018 2021 in Antarctica → 2022 2023 2024
Decades:	2000s 2010s 2020s
See also:	Other events of 2021 Timeline of Antarctic history

The following events occurred in Antarctica in 2021.

Ongoing: COVID-19 pandemic in Antarctica

• March 18 - The Chilean Air Force announces that part of its staff in Antarctica has been vaccinated against COVID-19, making them the first people on the continent to receive a vaccine.^[1]
• May 19 - A tabular iceberg slightly larger than the size of Mallorca, dubbed A-76, calves from the Ronne Ice Shelf in Antarctica's Weddell Sea.^[2]
• July 1 - The United Nations' World Meteorological Organization confirms that a record high temperature of 18.3 °C (64.9 °F) has been recorded in Antarctica at the Esperanza Base.^[3]