Henry Lee Lucas (August 23, 1936 – March 12, 2001), also known as The Confession Killer, was an American convicted murderer. Lucas was convicted of murdering his mother in 1960 and two others in 1983.

Giorgio William Vizzardelli (23 August 1922 – 11 August 1973) was an Italian serial killer.

Marie Noe (August 23, 1928 – May 5, 2016) was an American woman who was convicted in June 1999 of murdering eight of her children. Between 1949 and 1968, eight of the ten Noe children died of mysterious causes which were then attributed to sudden infant death syndrome.

Henry Every, also known as Henry Avery (born 20 August 1659; disappeared June 1696), sometimes erroneously given as Jack Avery or John Avery, was an English pirate who operated in the Atlantic and Indian oceans in the mid-1690s. He probably used several aliases throughout his career, including Benjamin Bridgeman, and was known as Long Ben to his crewmen and associates.

Rodney James Alcala (born Rodrigo Jacques Alcala; August 23, 1943 – July 24, 2021), also known as John Berger and John Burger, was an American serial killer and convicted sex offender who was sentenced to death in California for five murders committed between 1977 and 1979. He pleaded guilty and received two sentences, both twenty-five years to life, for two further murders committed in New York State.

Karl Babor (23 August 1918 – 18 January 1964) was an Austrian Nazi, SS doctor of the Third Reich, and officer at Camp Gross-Rosen with the rank of Hauptsturmführer. He was an expert in assassination by syringe of phenol.