What was the name of the 2020 worldwide market collapse triggered by the COVID-19 pandemic?

The worldwide market collapse triggered by the COVID-19 pandemic was the COVID-19 stock market crash.

The crash unfolded rapidly in February and March 2020 as governments introduced travel restrictions, business closures, and other measures to slow the spread of the coronavirus. Investors anticipated a sharp contraction in economic activity, disruptions to supply chains, and lower corporate earnings.

The S&P 500 entered a bear market on March 12, and major U.S. indexes reached their pandemic-era lows on March 23. Central banks cut interest rates or expanded asset purchases, while governments introduced large fiscal-support programs.

The crash was unusually fast compared with many earlier bear markets. Markets later rebounded strongly, although the economic effects of the pandemic continued through supply shortages, labor disruptions, and changing consumer behavior.