The Lebanese liquidity crisis is an ongoing financial crisis affecting Lebanon, that became fully apparent in August 2019, and was further exacerbated by the COVID-19 pandemic in Lebanon, the 2020 Beirut port explosion and the Russian invasion of Ukraine. The country experienced liquidity shortages in the years prior to 2019 but the full extent of the fragility of the economy were concealed through financial engineering by the governor of the central bank. Lebanon's crisis was worsened by United States sanctions targeting Syria's government and Iran-backed Hezbollah.

A financial crisis is any of a broad variety of situations in which some financial assets suddenly lose a large part of their nominal value. In the 19th and early 20th centuries, many financial crises were associated with banking panics, and many recessions coincided with these panics. Other situations that are often called financial crises include stock market crashes and the bursting of other financial bubbles, currency crises, and sovereign defaults. Financial crises directly result in a loss of paper wealth but do not necessarily result in significant changes in the real economy.