In history there have been a number of events that happened on a Friday and are thus known as Black Friday:

• Black Friday (1869), a financial crisis in the United States
• Black Friday (1889), the day of the Johnstown Flood.
• Black Friday (1910), WSPU took militant action when the Conciliation Bill failed.
• Black Friday (1919), a riot in Glasgow stemming from industrial unrest
• Black Friday (1921), day on which British dockers' and railwaymen's union leaders announced their decision not to call for strike action against wage reductions for miners
• Black Friday (1929), a stock market crash in the United States
• Black Friday (1939), a day of devastating fires in Australia
• Black Friday (1945), largest air battle over Norway, over Sunnfjord
• Hollywood Black Friday (1945), the day the six-month-old Confederation of Studio Unions (CSU) strike boiled over into a bloody riot at the Warner Bros. studios leading to the eventual breakup of the CSU.
• Black Friday (1978), a massacre of protesters in Iran
• Black Friday (1982), known in Britain after Argentina invaded the Falkland Islands, sparking the Falklands War
• Black Friday (1987), the day a hour-long F4 category tornado ran through the city of Edmonton, Alberta, Canada
• Black Friday (2004), a crackdown on a peaceful protest in the capital city of Maldives, Malé

Other uses of the term include:

• Black Friday, a name used for any Friday which falls on the 13th of a month
• Black Friday, the Friday preceding Easter, also known as Good Friday or God Friday.
• Black Friday (shopping), the day after Thanksgiving Day in the United States, the first shopping day of the Christmas season and one of the busiest shopping days of the year
• "Black Friday" is the name given to the last Friday before Christmas in the United Kingdom. It is a day when widespread anti-social behaviour due to public alcohol consumption is expected to occur, and police are given additional powers to combat it
• Black Friday (1940 film), a science-fiction/horror film starring Boris Karloff, Stanley Ridges and Bela Lugosi
• Black Friday (2005 film), a Hindi film on the 1993 serial bomb blasts in Mumbai, directed by Anurag Kashyap
• "Black Friday", a title of a song by Grinspoon
• "Black Friday", a title of a song by Steely Dan
• "Black Friday", a title of a song by Megadeth
• "Black Friday Rule", a title of a song by Flogging Molly
• "Black Friday", the nickname for game 3 of the 1977 NLCS baseball championships. Philadelphia Phillies fans gave the nickname because the Phillies blew an early lead against the Los Angeles Dodgers and a controversial call was made during the game
• "Black Friday", a title of a poem written by Dennis Rader, the BTK killer

Black days | Friday

Schwarzer Freitag | 黑色星期五 | 黑色星期五