Akira Nishiguchi (西口 彰, Nishiguchi Akira; December 14, 1925 – December 11, 1970) was a Japanese serial killer and fraudster who murdered five people in late 1963. The focus of a national manhunt, Nishiguchi's crime spree came to an end in January 1964 when he was identified by the 10-year-old daughter of a potential victim.

Stephen Wade (14 December 1887 – 22 December 1956) was one of England's executioners from 1940 until 1955. He assisted Tom and Albert Pierrepoint on 31 occasions and also carried out 28 executions as principal executioner.

Steven John Grieveson (born 14 December 1970) is a British serial killer known as the Sunderland Strangler, who murdered four teenage boys in a series of killings committed between 1990 and 1994 in Sunderland, England. Convicted of three counts of murder at Leeds Crown Court, Grieveson was handed three life sentences on 28 February 1996, with a recommendation that he serve a minimum of 35 years before the Home Secretary considers his eligibility for release.

Frank John Cullotta (December 14, 1938 – August 20, 2020) was an American mobster who was an associate of the Chicago Outfit through Tony Spilotro and a member of the Hole in the Wall Gang burglary ring in Las Vegas. After his arrest in 1982, he became a government witness and entered the witness protection program.

Huang Jinrong (Chinese: 黃金榮; Wade–Giles: Hwang Chin-jung; 10 May 1868 – 20 June 1953), nicknamed "Pockmarked" due to a bad case of smallpox, was a Chinese chief detective who worked for the French Concession police force in Shanghai from 1892 to 1925. Even though he was a detective, he was also one of three major Green Gang bosses along with Du Yuesheng and Zhang Xiaolin in Shanghai.

Jake Bird (December 14, 1901 – July 15, 1949) was an American serial killer who was executed in Washington for the 1947 murders of two women in Tacoma. He is also known to have murdered at least eleven other people across several states between 1930 and 1947.

Álvaro Julio Federico Corbalán Castilla (born 14 December 1951 in Santiago, Chile) is a retired Chilean major general and convicted murderer who belonged to the National Information Center (Central Nacional de Informaciones, CNI), an organization associated with political repression and torture during the military dictatorship in Chile, led by Augusto Pinochet between 1973 and 1990. He is currently serving a sentence for violation of human rights in the Punta Peuco Prison.

Seweryn Antonowicz Kłosowski (14 December 1865 – 7 April 1903), better known under his pseudonym George Chapman, was a Victorian-era Anglo-Polish serial killer known as the Borough Poisoner.