Todd Christopher Kohlhepp (né Sampsell; born March 7, 1971) is an American serial killer, mass shooter, serial rapist, animal abuser, and kidnapper who was convicted of murdering seven people in Spartanburg County, South Carolina, between 2003 and 2016. In addition, Kohlhepp kidnapped and raped at least two women and claims to have killed many more.

Mikhail Viktorovich Popkov (Russian: Михаи́л Ви́кторович Попко́в; born 7 March 1964) is a Russian serial killer, rapist, and necrophile who committed the sexual assault and murder of eighty-seven girls and women between 1992 and 2011 in Angarsk, Irkutsk, in Siberia, and Vladivostok in the Russian Far East, although he has confessed to and is suspected of at least ninety in total. He is known as "the Werewolf" and "the Angarsk Maniac" for the particularly brutal nature of his crimes; he would extensively mutilate the bodies of his victims and perform sexual acts on them.

Reinhard Tristan Eugen Heydrich (; German: [ˈʁaɪnhaʁt ˈtʁɪstan ˈʔɔʏɡn̩ ˈhaɪdʁɪç] ; 7 March 1904 – 4 June 1942) was a high-ranking SS and police official in Nazi Germany as well as one of the principal architects of the Holocaust. He held the rank of SS-Obergruppenführer und General der Polizei.

Nicodemo Domenico Scarfo Sr. (March 8, 1929 – January 13, 2017) also known as "Little Nicky", was a figure in the Italian-American mafia who was the boss of the Philadelphia crime family between 1981 and 1990.

Yevgeny Anatolyevich Litovchenko (Russian: Евгений Анатольевич Литовченко; Ukrainian: Євген Анатолійович Литовченко, romanized: Yevhen Anatoliiovych Lytovchenko) is a Ukrainian murderer, serial rapist and suspected serial killer. The prime suspect in at least 4 murders and a series of rapes in Leningrad Oblast, Russia, from 2006 to 2014, he was detained by Russian authorities and confessed to the crimes, but escaped during an investigative experiment on June 6, 2014.

Mary A. Cowan (née Knight; March 8, 1863 – September 17, 1898), known as The Borgia of Maine, was an American serial killer who poisoned two husbands and four children between 1884 and 1894, and attempted to murder a third husband.

Nazario Moreno González (8 March 1970 – 9 March 2014), commonly referred to by his aliases El Chayo ('Nazario' or 'The Rosary') and El Más Loco ('The Craziest One'), was a Mexican drug lord who headed La Familia Michoacana before heading the Knights Templar Cartel, a drug cartel headquartered in the state of Michoacán. He was one of Mexico's most-wanted drug lords.

Alexey Sergeevich Kruglov (Russian: Алексей Сергеевич Круглов; born 8 March 1986), known as The Istra Maniac (Russian: Истринский маньяк), is a Russian serial killer, rapist and pedophile. He raped and killed 4 children in the Istrinsky District of the Moscow Oblast.

Ferdinand I (Italian: Ferdinando I; 12 January 1751 – 4 January 1825) was King of the Two Sicilies from 1816 until his death. Before that he had been, since 1759, King of Naples as Ferdinand IV and King of Sicily as Ferdinand III.

Dennis Lynn Rader (born March 9, 1945), better known by his pseudonym BTK (for "bind, torture, kill"), is an American serial killer and mass murderer who murdered at least ten people in Wichita and Park City, Kansas, between 1974 and 1991. Although he occasionally killed or attempted to kill men and children, Rader typically targeted women.

Douglas Daniel Clark (March 10, 1948 – October 11, 2023) was an American serial killer and necrophile. Clark and his accomplice, Carol Mary Bundy, were collectively known as the Sunset Strip Killers and were responsible for the deaths of at least seven individuals although they are considered suspects in the deaths of several other women and young girls.

Vincenzo Aiutino (born 10 March 1970) is a French serial killer popularly known as "the man with fifty affairs". Convicted of three murders in the Longwy commune, he was sentenced to life imprisonment on 6 March 1998, along with 18 years of preventive detention without parole.

Sipho Mandla Agmatir Thwala is a South African rapist and serial killer who was convicted in 1999 for the murders of 16 women and 10 rapes. He was sentenced to 506 years in prison.

Osama bin Muhammad bin 'Awad bin Laden (10 March 1957 – 2 May 2011) was the founder and first general emir of al-Qaeda. A pan-Islamist and Islamic extremist, bin Laden organized and funded numerous jihadist or anti-Western militants and terrorist attacks worldwide.

Flavio Méndez Santiago (alias El Amarillo) is a Mexican drug lord of Los Zetas.

Andre Rand (born Frank Rostum Rushan; March 11, 1944), also known as Frank Bruchette and dubbed the Pied Piper of Staten Island, is an American convicted child kidnapper, sex offender and suspected serial killer who is currently serving two sentences of twenty-five years to life in prison for the abductions of two girls, age 7 and 12, on Staten Island, New York. He is eligible for parole in 2037.

Satinderjeet Singh (born 11 March 1994), also known as Goldy Brar, is a Canada-based Indian gangster. Born in Punjab's Muktsar district, he is wanted by Indian authorities in connection with murder, attempted murder, and drug trafficking.

Darya Nikolayevna Saltykova (Russian: Да́рья Никола́евна Салтыко́ва; née Ivanova, Ива́нова; 11 March 1730 – 9 December 1801), commonly known as Saltychikha (Russian: Салтычи́ха, IPA: [səltɨˈt͡ɕixə]), was a Russian noblewoman from the Saltykov family, sadist, and serial killer from Moscow. She became notorious for torturing and killing many of her serfs, mostly women.

Alfred Leonard Cline (March 12, 1888 – August 5, 1948), known as The Buttermilk Bluebeard, was an alleged American serial killer responsible for murdering at least nine people.

Algimantas Mykolas Dailidė (12 March 1921 – 2015) was a Lithuanian Nazi collaborator who was an official of the Nazi-sponsored Lithuanian Security Police (Saugumas) during World War II. After the war, Dailidė sought refuge in the United States, saying he had been a "forester".

Mikhail Olegovich Makarov (Russian: Михаи́л Оле́гович Мака́ров; 12 March 1962 – 1988), known as The Executioner (Russian: Палач), was a Soviet serial killer, who from February to May 1986 committed three murders and one attempted murder in Leningrad. He was sentenced to death and executed in 1988.

Christine Laverne Falling (née Slaughter; born March 12, 1963) is an American serial killer.

Robert Tyrone Hayes (born March 12, 1982) is an American serial killer who was convicted of three murders in the Daytona Beach, Florida, area between December 2005 and February 2006. DNA tests have also linked him to a fourth murder committed in March 2016.

Ratko Mladić (Serbian Cyrillic: Ратко Младић, pronounced [râtko mlǎːdit͡ɕ]; born 12 March 1942) is a Serbian former military officer who led the Army of Republika Srpska (VRS) during the Yugoslav Wars. In 2017, he was found guilty of committing war crimes, crimes against humanity, and genocide by the International Criminal Tribunal for the former Yugoslavia (ICTY).

Marie Delphine Macarty or MacCarthy (March 19, 1787 – December 7, 1849), more commonly known as Madame Blanque or, after her third marriage, as Madame LaLaurie, was a New Orleans socialite and serial killer who tortured and murdered enslaved people in her household.

Christopher Michael Coke (born 13 March 1969), also known as Dudus, is a convicted Jamaican drug lord and the leader of the Shower Posse, a violent drug gang started by his father Lester Coke in Jamaica, which exported "large quantities" of marijuana and cocaine into the United States.

Donald Henry "Pee Wee" Gaskins Jr. (born Donald Henry Parrott Jr.; March 13, 1933 – September 6, 1991) was an American serial killer and rapist from South Carolina who stabbed, shot, drowned, and poisoned more than a dozen people.

Christopher Bernard Wilder (March 13, 1945 – April 13, 1984), also known as the Beauty Queen Killer and the Snapshot Killer, was an Australian-American serial killer who abducted at least twelve young women and girls, killing eight of them during a six-week, cross-country crime spree in the United States in early 1984. Having committed numerous rapes and sexual assaults in Australia and the United States dating back to 1963, Wilder had developed his methods for victimizing attractive young women, most of whom he enticed by promising to take their photographs.

Robert Eugene Brashers (March 13, 1958 – January 19, 1999) was an American serial killer, mass murderer and serial rapist who committed at least eight murders in Kentucky, Missouri, South Carolina and Texas between 1990 and 1998. During his lifetime, Brashers was convicted of attempted murder for shooting a woman in 1985, as well as for various other offenses stemming from a 1992 case in which he stole a vehicle, but was not identified as a suspect in any of his murders and remained in relative obscurity.

Miyamoto Musashi (宮本 武蔵; Japanese pronunciation: [mʲi.ja.mo.to (|) mɯꜜ.sa.ɕi], c. 1583 – 13 June 1645) was a Japanese swordsman, strategist, artist, and writer who became renowned through stories of his unique double-bladed swordsmanship and undefeated record in his 62 duels.

Oleg Yurievich Chizhov (in some sources mistakenly called Andrey Kryukov) (Russian: Олег Юрьевич Чижов; born 14 March 1970), known as The Birsky Maniac (Russian: Бирский маньяк), is a Russian rapist and serial killer. He committed a series of brutal murders, committing one of the crimes with accomplices.

Theresa Jimmie Francine Knorr (née Cross; born March 14, 1946) is an American woman convicted of torturing and murdering two of her six children while using the others to facilitate and cover up her crimes. She was acquitted of murdering her first husband and was also considered a suspect in the unsolved murder of her sister Rosemary Norris.

Vyacheslav Kirillovich Ivankov (Russian: Вячесла́в Кири́ллович Иванько́в; 2 January 1940 – 9 October 2009) was a Russian mafia boss and thief in law who was believed to have connections with Russian state intelligence organizations and their organized crime partners. He operated in both the Soviet Union and the United States.

Ladislav Hojer (15 March 1958 – 7 August 1986) was a Czech sadistic rapist, necrophile, serial killer and cannibal who murdered five women in Czechoslovakia between 1978 and 1981.

Morris Solomon Jr. (March 15, 1944 – August 1, 2024), known as The Sacramento Slayer, was an American convicted serial killer on death row in San Quentin, California for the murders of six women.

Stanisław Modzelewski (15 March 1929 – 13 November 1969) was a Polish serial killer known as the Vampire of Gałkówek (Polish: Wampir z Gałkówka), active near Łódź, Poland during the 1950s. He completed three classes of primary school and worked in Warsaw as a driver.

Nikifor Maruszeczko (15 March 1913 – 8 August 1938) was a Polish criminal and serial killer, considered to be one of the most dangerous criminals in Poland during the interwar period.

Andrew Jackson (March 15, 1767 – June 8, 1845) was the seventh president of the United States from 1829 to 1837. He rose to fame as a U.S.

Dorothea "Theodora" Binz (16 March 1920 – 2 May 1947) was a Nazi German officer and supervisor at Ravensbrück concentration camp during the Holocaust. She was known as one of the most brutal, ruthless and sadistic overseers in the Nazi system.

Colin Ireland (16 March 1954 – 21 February 2012) was a British serial killer known as the Gay Slayer, because his victims were gay men. Criminologist David Wilson believes that Ireland was a psychopath.

Prince Pavel Rafailovich Bermondt-Avalov (Russian: Павел Рафаилович Бермондт-Авалов) or Prince Avalov (16 March [O.S. 4 March] 1877 – 27 December 1973) was a Russian officer and Cossack adventurer-warlord.

Jung Myung-seok (Korean: 정명석; born 16 March 1945; sometimes spelled Jeong Myeong-Seok) is a South Korean clergyman convicted of sexual assault, who founded and led the Providence religious movement, also known as Christian Gospel Mission (CGM) or Jesus Morning Star (JMS), a Christian new religious movement that is commonly referred to as a Christian sect or cult. Jung was convicted of rape by the Supreme Court of Korea and was sentenced to 10 years' imprisonment between 2008 and 2018.

Joseph Salvatore "Skinny Joey" Merlino (born March 13, 1962) is an American former mobster who was the reputed boss of the Philadelphia crime family from the 1990s until 2024. He rose to power and seized control of the organization in the mid-nineties after he fought against the John Stanfa faction of the family.

Stephen Oladimeji K. Akinmurele (16 March 1978 – 28 August 1999) was a Nigerian-English serial killer who was charged with murdering five elderly people between 1995 and 1998.

Vladimir Nikolayevich Nikolayev Alho (Russian: Влади́мир Никола́евич Никола́ев Алхо) (born March 16, 1959) is a Russian murderer from Novocheboksarsk.

Francisco Pizarro (; Spanish: [fɾanˈθisko piˈθaro]; c. 1478 – 26 June 1541) was a Spanish conquistador, best known for his expeditions that led to the Spanish conquest of the Inca Empire.

Josef Mengele (German: [ˈjoːzɛf ˈmɛŋələ] ; 16 March 1911 – 7 February 1979), often dubbed the "Angel of Death" (German: Todesengel), was a German military officer and physician during World War II at the Soviet front and then at Auschwitz during the Holocaust. He conducted research and experiments on prisoners at the Auschwitz II-Birkenau concentration camp, where he was a member of the team of doctors who selected victims to be murdered in the gas chambers.

Timothy Wilson Spencer (March 17, 1962 – April 27, 1994), also known as The Southside Strangler, was an American serial killer who committed three rapes and murders in Richmond, Virginia, and one in Arlington, Virginia, in the fall of 1987. In addition, Spencer committed a previous murder in 1984, for which a different man, David Vasquez, was wrongfully convicted.

Rocco Fischetti, also known as "Rocky" and "Ralph Fisher" (March 24, 1903 – July 5, 1964), was a Chicago mobster with the Chicago Outfit criminal organization who ran many illegal gambling operations. Fischetti also accompanied singer Frank Sinatra on two trips to Havana, Cuba.

Nicholas "Little Nicky" Corozzo (born March 17, 1940) is an American mobster who allegedly serves as a caporegime in the Gambino crime family of New York City.