A list of events in 1956 related to serial killers.
January[]
- 11 — Gerald Pizzuto is born.
- 12 — Henry Brisbon is born.
- 14 — Masakatsu Nishikawa is born.
February[]
- 19 — Willie Brown is born.
- 29 — Aileen Wuornos is born.
March[]
- 12 — Nathaniel Code is born.
April[]
- 7 — Syvasky Poyner is born.
- 8 — Jocelyne Bourdin is born.
- 16 — Charles David Shaw is born.
May[]
- 9 — Wayne Henley is born.
June[]
- 6 — James Briley is born.
- 17 — Sergey Maduev is born.
July[]
- 10 — Alain Lamare is born.
- 22 — Andre Jones is born.
- 29 — Gerald Pizzuto is apprehended.
- 30 — Alfredo Stranieri is born.
August[]
- 8 — Mohamed Belahrach is born.
- 27 — John Taylor is born.
September[]
- 13 — Robert Foley is born.
- 16 — John Butkovich (victim) is born.
- 23 — Brian Dugan is born.
- 24 — Manuel Pardo is born.
October[]
- 10 — Charlene Gallego is born.
- 13 — John Sweeney is born.
- 26 — Xu Renzhong died.
- 28 — Karen Mandic (victim) is born.
November[]
- 6 — Marc Dutroux is born.
- 9 — Willie Williams is born.
- 17 — Alexander Astashev is born.
December[]
- 5 — Lê Thanh Vân is born.
- 19 — John Bodkin Adams is apprehended.
- 24 — William Burkitt died.
- 26 — Lyle Brummett is born.
Unknown[]
- ? — Joseph Akin is born.
- ? — Serge Archambault is born.
- ? — Alexander Astashev is born.
- ? — Hugh Bondurant is born.
- ? — Paul Brumfitt is born.
- ? — Javed Iqbal is born.
- ? — Yuri Ivanov is born.
- ? — Elton Manning Jackson is born.
- ? — David Allen Lucas is born.
- ? — Billy Mansfield is born.
- ? — James Marlow is born.
- ? — Henry Lee Moore died.
- ? — Eugene Protsman is born.
- ? — Danny Rouse is born.
- ? — Nikolay Shubin is born.
- ? — David Smith is born.
- ? — Lisa Jane Turner is born.
- ? — Xu Renzhong is apprehended.