Tbilisi massacre: An anti-Soviet peaceful demonstration and hunger strike in Tbilisi, demanding restoration of Georgian independence, is dispersed by the Soviet Army, resulting in 20 deaths and hundreds of injuries.

April 9 Tragedy refers to the events in Tbilisi, Georgian Soviet Socialist Republic, on April 9, 1989, when an anti-Soviet, pro-independence demonstration was crushed by the Soviet Army, resulting in 21 deaths and hundreds of injuries. April 9 is now remembered as the National Unity Day, an annual public holiday.

Anti-Sovietism or anti-Soviet sentiment are activities that were actually or allegedly aimed against the Soviet Union or government power within the Soviet Union.

Tbilisi, in some languages still known by its pre-1936 name Tiflis, is the capital and largest city of Georgia, located on the banks of the Kura River. With around 1,330,217 inhabitants, it contains almost one third of the country's population. Tbilisi was founded in the fifth century AD by Vakhtang I of Iberia and has since served as the capital of various Georgian kingdoms and republics. Between 1801 and 1917, then part of the Russian Empire, it was the seat of the Caucasus Viceroyalty, governing both the northern and the southern sides of the Caucasus.

April 9 is the 99th day of the year in the Gregorian calendar; 266 days remain until the end of the year.