What was the name of the 2008 worldwide market collapse linked to the subprime-mortgage crisis?

The 2008 worldwide market collapse linked to the subprime-mortgage crisis was the Global financial crisis.

The crisis grew from risky U.S. mortgage lending, complex mortgage-backed securities, excessive leverage, and weaknesses in financial regulation and risk management. As U.S. housing prices fell, defaults increased and investors questioned the value of securities held by banks around the world.

The failure of Lehman Brothers on 15 September 2008 became a major turning point. Credit markets froze, financial institutions required emergency support, and stock markets plunged internationally. Governments and central banks responded with bank rescues, guarantees, interest-rate cuts, and other extraordinary measures.

The Global financial crisis is broader than the U.S. subprime-mortgage crisis, which was one of its major causes. It is also distinct from the 2000–2002 dot-com crash, whose central problem was the collapse of internet-company valuations rather than a worldwide banking breakdown.