Joseph John Aiuppa (December 1, 1907 – February 22, 1997), also known as "Joey O'Brien" and "Joey Doves", was an American mobster who became a leader of the Chicago Outfit from 1971 until his skimming conviction in 1986.

William Jackson, also known as Action Jackson (December 13, 1920 – August 11, 1961) was an enforcer and loan collector for the Chicago Outfit. He earned his nickname of "Action" because it was slang for "Juice Man", which meant debt-collector.

Pablo Emilio Escobar Gaviria (; Spanish: [ˈpaβlo eskoˈβaɾ]; 1 December 1949 – 2 December 1993) was a Colombian drug lord, narcoterrorist, and politician who was the founder and leader of the Medellín Cartel. Dubbed the "King of Cocaine", Escobar was one of the wealthiest conventional criminals in history, having amassed an estimated net worth of US$30 billion by his death, while his drug cartel monopolized the cocaine trade into the US in the 1980s and early 1990s.

Charles Denton "Tex" Watson (born December 2, 1945) is an American convicted mass murderer and former central member of the "Manson Family" led by Charles Manson. Watson is frequently identified as the tactical ringleader of the Tate–LaBianca murders, carried out on August 9–10, 1969.

Louis Anthony "Bobby" Manna (born December 2, 1929) is an American mobster who served as consigliere of the Genovese crime family under the regime of Vincent “Chin” Gigante, operating primarily out of Hoboken, New Jersey, Manna served his tenure as the consigliere from between 1981 until 1989. In June 1989, Manna was convicted of conspiring to murder 3 people and racketeering, in April 2025, Manna was released from prison after serving over 35 years in prison, after serving stints in Kansas City Federal Penitentiary and Rochester Federal Medical Center.

John Rackham (hanged 18 November 1720) was an English pirate operating in the Bahamas and Jamaica during the early 18th century. Although only referred to as John Rackham in primary sources, he is best known today by the likely fictional nickname Calico Jack.

Francisco Javier Roman-Bardales (born December 2, 1977), also known as "Veterano de Tribus", is a Salvadoran former fugitive and an alleged senior leader of MS-13 responsible for criminal activities of the gang in the United States, Mexico, and El Salvador.

Hernán Cortés, 1st Marquis of the Valley of Oaxaca (c. 1485 – 2 December 1547) was a Spanish conquistador, military commander, explorer, captain general, and writer who led an expedition that caused the fall of the Aztec Empire and brought large portions of what is now mainland Mexico under the rule of the King of Castile in the early 16th century.

Warren Steed Jeffs (born December 3, 1955) is an American cult leader and convicted child sex offender. He is the president of the Fundamentalist Church of Jesus Christ of Latter-Day Saints, a polygamous cult based in Arizona and is serving a life sentence in Texas for child sexual assault following two convictions in 2011.

Wayne Adam Ford (born December 3, 1961) is an American serial killer. Ford, a former long-haul truck driver, murdered four women from 1997 to 1998.

José Antonio Rodríguez Vega (3 December 1957 – 24 October 2002), nicknamed El Mataviejas (The Old Lady Killer), was a Spanish serial killer who raped and killed at least 16 elderly women, ranging in age from 61 to 93 years old, in and around Santander, Cantabria, between August 1987 and April 1988.

Jerry Bronson Givens (December 3, 1952 – April 13, 2020) was the chief executioner of Virginia from 1982 until 1999, during which he executed 62 people, including two of the Briley Brothers. He spent most of his career in Virginia's correctional system, and was initially a supporter of capital punishment.

Johanna Hård née Jungberg (3 December 1789 – 12 March 1851), was a Swedish pirate.

Patricia Dianne Krenwinkel (born December 3, 1947) is an American convicted murderer and former member of the Manson Family. On August 9, 1969, Patricia Krenwinkel, Tex Watson, and Susan Atkins murdered pregnant actress Sharon Tate, Jay Sebring, Wojciech Frykowski, Abigail Folger, and Steven Parent at 10050 Cielo Drive in Benedict Canyon, Los Angeles.

Scott Wilson Williams (December 3, 1963 – August 6, 2022) was a convicted American serial killer who lived in Monroe, North Carolina. He had been convicted for the murders of three women that took place over a period of nine years.

Paul Schäfer Schneider (4 December 1921 – 24 April 2010) was a German-Chilean Christian minister, convicted sex offender, and the founder and leader of a sect and agricultural commune of 300 German immigrants called Colonia Dignidad (Dignity Colony) (later renamed Villa Baviera) located in Parral in southern Chile, about 340 km (210 miles) south of Santiago from 1961 to 2005. Schäfer led his followers in the teachings of William Branham.

Cesar Francesco Barone (born Adolph James Rode Jr.; December 4, 1960 – December 24, 2009) was an American serial killer and rapist who was sentenced to death in 1995 for assaulting and killing four women in the Portland metropolitan area area between 1991 and 1993. He was posthumously linked to one further murder, and is a suspect in two others dating back to 1979, including at least one in Florida.

Ernst Heinrich von Schimmelmann (4 December 1747 – 9 February 1831) was a German-born Danish politician, businessman and philanthropist.

Zephaniah Kingsley Jr. (December 4, 1765 – September 14, 1843) was an English-born planter, merchant and slave trader who moved as a child with his family to the Province of South Carolina and enjoyed a successful mercantile career.

Francisco Franco Bahamonde (4 December 1892 – 20 November 1975) was a Spanish general who was the leader of Spain from 1939 until his death in 1975. He had led the Nationalist forces in overthrowing the Second Spanish Republic during the Spanish Civil War.

Farit Gabdulkhayevich Gabidullin (Russian: Фарит Габдулхаевич Габидуллин; born 5 December 1972) and Timur Gabdulkhayevich Gabidullin (Russian: Тимур Габдулхаевич Габидуллин; born 5 December 1972) are Soviet-Russian twin brothers and serial killers who were responsible for at least 14 murders and rapes of young girls and women around Chelyabinsk Oblast from 1989 to 2000. Both were convicted and sentenced for their respective roles in the crimes, but some suspect that they might have killed many more people than the amount they were convicted of.

Piet Pieterszoon Hein (25 November 1577 – 18 June 1629) was a Dutch admiral and privateer for the Dutch Republic during the Eighty Years' War. Hein was the first and the last to capture a large part of a Spanish treasure fleet which transported huge amounts of gold and silver from Spanish America to Spain.

Rajendra Sadashiv Nikalje (born 13 January 1957), popularly known by his moniker Chhota Rajan, is an Indian gangster and convicted criminal who was the crime lord of a major Mumbai-based syndicate.

Charles François d’Angennes, Marquis de Maintenon (5 December 1648 – before 2 April 1691) was a French nobleman who became a buccaneer in the Caribbean. He sold the Château de Maintenon, his ancestral estate, to Madame de Maintenon, the second wife of King Louis XIV of France.

Vladimir Ivanovich Romanov (Russian: Владимир Иванович Романов; 5 December 1950 – 12 October 2006), known as the Kaliningrad Maniac (Russian: Калининградский маньяк, romanized: Kaliningradsky manyak), was a Soviet-Russian serial killer and child rapist. Between 1991 and 2005, he committed at least 12 murders associated with rape.

Emperor Taizu of Later Liang (後梁太祖), personal name Zhu Quanzhong (朱全忠) (December 5, 852 – July 18, 912), né Zhu Wen (朱溫), name later changed to Zhu Huang (朱晃), nickname Zhu San (朱三, literally, "the third Zhu"), was a Chinese military general, monarch, and politician. He was a Jiedushi (military governor) and warlord who in 907 overthrew the Tang dynasty and established the Later Liang dynasty, ruling as its first emperor, ushering in the era of the Five Dynasties and Ten Kingdoms.

Harvey Miguel Robinson (born December 6, 1974) is an American serial killer currently imprisoned on death row in Pennsylvania. He was 17 when he committed his violent spree, killing three and injuring two.

Dana Sue Gray (born December 6, 1957) is an American serial killer who murdered three elderly women in 1994. She was caught after a fourth intended victim survived and identified her.

John Singleton Mosby (December 6, 1833 – May 30, 1916), also known by his nickname "Gray Ghost", was an American military officer who was a Confederate cavalry commander in the American Civil War. His command, the 43rd Battalion, Virginia Cavalry (known as Mosby's Rangers or Mosby's Raiders) was a partisan ranger unit noted for its lightning-quick raids and its ability to elude Union Army pursuers and blend in with local farmers and townsmen.

Mark William Hofmann (born December 7, 1954) is an American counterfeiter, forger, and convicted murderer. Widely regarded as one of the most accomplished forgers in history, Hofmann is especially noted for his creation of fake documents related to the history of the Latter Day Saint movement.

Cosimo Di Lauro (8 December 1973 – 13 June 2022) was an Italian Camorrista who was acting boss of the Di Lauro clan from Naples. Due to his flamboyant nature and passion for designer clothes, he earned the nickname "The Designer Don".

Billy Kipkorir Chemirmir (December 8, 1972 – September 19, 2023) was a Kenyan murderer and suspected serial killer accused of the murders of at least 18 elderly women in Dallas, Texas, United States, and its surrounding suburbs. Chemirmir was indicted for 22 murders and convicted of two.

Harry Edward Greenwell (December 9, 1944 – January 31, 2013), known as The I-65 Killer and The Days Inn Killer, was an American serial killer and rapist who committed at least three murders along Interstate 65 in Indiana and Kentucky between 1987 and 1989. The killings were linked to Greenwell via DNA in 2022, but he had died of cancer in 2013.

John Martin Scripps (9 December 1959 – 19 April 1996), also known as the Garden City Butcher, and "Tourist From Hell" was an English serial killer who murdered three tourists—Gerard Lowe in Singapore, and Sheila and Darin Damude in Thailand—with another three potential (yet unconfirmed) victims. He posed as a tourist himself when committing the murders.

Fritz Jakob Haber (German: [ˈfʁɪt͡s ˈhaːbɐ] ; 9 December 1868 – 29 January 1934) was a German chemist who received the Nobel Prize in Chemistry in 1918 for his invention of the Haber process, a method used in industry to synthesize ammonia from nitrogen gas and hydrogen gas. This invention is important for the large-scale synthesis of fertilizers and explosives.

Brian Gene Nichols (born December 10, 1971) is a convicted murderer and convicted rapist known for his escape and spree killing in the Fulton County Courthouse in Atlanta, Georgia, on March 11, 2005. Nichols was on trial for rape when he escaped custody and murdered Rowland Barnes, the judge presiding over his trial; a court reporter; a Fulton County Sheriff's deputy; and later, an ICE special agent.

Harvey Murray Glatman (December 10, 1927 – September 18, 1959) was an American serial killer and rapist during the late 1950s known as the Lonely Hearts Killer or the Glamour Girl Slayer. He would use several pseudonyms, posing as a professional photographer to lure his victims with the promise of a modeling career.

Dámaso Rodríguez Martín (December 11, 1944 – February 19, 1991), better known as El Brujo (The Warlock) or Maso, was a Spanish serial killer and rapist who, in 1991, was responsible for three murders in the Anaga mountain area in Tenerife, where he sought refuge after his escape from the Tenerife II Prison, where he was serving a sentence for a violation and one of his killings.

On 23 September 1995, 16-year-old Éric Borel murdered three members of his family in Solliès-Pont in the arrondissement of Toulon, France. The following day, he shot dead twelve other people and injured four more in the village of Cuers the next day.

Joseph Kallinger (born Joseph Lee Brenner III; December 11, 1935 – March 26, 1996) was an American serial killer who murdered three people and tortured four families. He committed the later crimes with his 12-year-old son Michael.

Amon Leopold Göth (German: [ˈɡøːt] ; 11 December 1908 – 13 September 1946) was an Austrian SS functionary and war criminal. He served as the commandant of the Kraków-Płaszów concentration camp in Płaszów in German-occupied Poland for most of the camp's existence during World War II.

Gilbert Paul Jordan (born Gilbert Paul Elsie; December 12, 1931 – July 7, 2006), known as The Boozing Barber, was a Canadian serial killer who is believed to have committed the so-called "alcohol murders" in Vancouver, British Columbia.

Franz Fuchs (12 December 1949 – 26 February 2000) was an Austrian domestic terrorist and mass murderer who killed four people and injured 15, some seriously, using three improvised explosive devices and 24 mail bombs, which he sent in five waves between 1993 and 1997.

Edward Joseph Leonski (12 December 1917 – 9 November 1942) was a United States Army soldier and serial killer responsible for the strangling murders of three women in Melbourne, Australia, in 1942. Leonski was dubbed the Brownout Strangler, after the practice of dimming or restricting outdoor lighting to make the city less visible to potential enemy aircraft during nighttime raids.

Martin Ney (born 12 December 1970) is a German convicted serial killer and child sex offender.

General Cao Kun (simplified Chinese: 曹锟; traditional Chinese: 曹錕; pinyin: Cáo Kūn; Wade–Giles: Ts'ao K'un; courtesy name: Zhongshan (仲珊); December 12, 1862 – May 15, 1938) was a Chinese warlord and politician, who served as the President of China from 1923 to 1924, as well as the military leader of the Zhili clique in the Beiyang Army.

Robert Surcouf (French pronunciation: [ʁɔbɛʁ syʁkuf]; 12 December 1773 – 8 July 1827) was a French privateer, businessman and slave trader who operated in the Indian Ocean from 1789 to 1808 during the French Revolutionary and Napoleonic Wars. Capturing over 40 prizes, he later amassed a large fortune from a variety of commercial activities, such as ship-owning, privateering, slave trading and owning land.

Richard Lawrence Marquette (also known as Dick Marquette; born December 12, 1934) is an American serial killer who killed three women, drained their blood, mutilated and dismembered their bodies, and scattered their remains between 1961 and 1975. He was the first person to be added as an eleventh name on the FBI Ten Most Wanted List, in connection with the 1961 murder of Joan Caudle in Portland, Oregon.

Toivo Harald "Kirves" Koljonen (12 December 1910 – 21 October 1943) was a Finnish mass murderer and the last Finn executed for a civilian crime. He was executed by firing squad for a sextuple murder.

Arnold Karl Sodeman ((1899-12-12)12 December 1899 – (1936-06-01)1 June 1936), also known as the School-girl Strangler, was an Australian serial killer who targeted children. He confessed to four killings, and was executed at Pentridge Prison in 1936.