Joran Andreas Petrus van der Sloot (Dutch pronunciation: [ˈjoːrɑɱ vɑn dər ˈsloːt]; born 6 August 1987) is a Dutch murderer, extortionist, con man, and drug trafficker who was convicted in the 2010 killing of Stephany Flores Ramírez in Lima, Peru. He first came to public attention as the prime suspect in the disappearance of Natalee Holloway in 2005.

Marco Bergamo (6 August 1966 – 17 October 2017), known as The Monster of Bolzano, was an Italian serial killer who murdered five women between 1985 and 1992.

Alexander Grigorievich Dudnik (Kazakh: Александр Григорьевич Дудник; Russian: Александр Григорьевич Дудник; 6 August 1939 – 5 April 1996) was a Kazakhstani serial killer and rapist who murdered at least 3 women in and around Vishnevka between 1993 and 1994. Before committing a series of murders, Dudnik had been convicted of rape three times during the Soviet era.

William Palmer (6 August 1824 – 14 June 1856), also known as the Rugeley Poisoner or the Prince of Poisoners, was an English doctor and murderer. A court convicted him for the 1855 murder of his friend John Cook, whom he had poisoned with strychnine.

Samuel Flores Borrego (a.k.a. Metro 3; 6 August 1972 – 2 September 2011) was a Mexican drug lord and high-ranking lieutenant of the Gulf Cartel.