Poisoners
- Aharon Galstyan
- Alexey Vygovsky
- Alfred Leonard Cline
- Amelia Sach and Annie Walters
- Amelia Winters
- Anders Lindbäck (vicar)
- Anna Maria Zwanziger
- Anna Marie Hahn
- Anna Palaiologina (daughter of Andronikos Angelos Palaiologos)
- Anne Turner (murderer)
- Annie Hearn
- Antoine François Desrues
- Antti Taskinen
- Audrey Marie Hilley
- Ayumi Kuboki
- Baba Anujka
- Baptistine Philip
- Blanche Taylor Moore
- Carolyn Riley
- Catherine Wilson
- Cecile Bombeek
- Cecilia Verzellina
- Charles Sobhraj
- Christiana Edmunds
- Christina Marie Riggs
- Christman Genipperteinga
- Cordelia Botkin
- David Avendaño Ballina
- David Dowler
- Debora Green
- Dena Thompson
- Donald Henry Gaskins
- Dorothea Puente
- Edme Castaing
- Edward H. Rulloff
- Edward William Pritchard
- Ekaterini Dimetrea
- Elisabeth Wiese
- Elizabeth Fenning
- Emeline Meaker
- Ensio Koivunen
- Eric Beishline
- Francis Hermann
- Frederick Charles Wood
- Frederick Seddon
- Gabriel Garza Hoth
- Georges-Alexandre Sarret
- George Chapman (murderer)
- George Henry Lamson
- Georgy Martirosyan (serial killer)
- Giovanna Bonanno
- Giovanna De Grandis
- Gironima Spana
- Giulia Tofana
- Graham Young
- Graziosa Farina
- Hawley Harvey Crippen
- Hélène Jégado
- Herbert Rowse Armstrong
- Herman Petrillo
- Hippolyte Visart de Bocarmé
- Houston Roberts
- Huang Hu
- Isaac L. Wood
- J. Frank Hickey
- James Winkles
- Jan Philopon Dambrovský
- Jaroslava Fabiánová
- Johannes Opdam
- Johann Oberreiter
- Johann Otto Hoch
- John Bodkin Adams
- John Buettner-Janusch
- John Pott
- John Tawell
- Jolly Joseph
- Jordan Monaghan
- Jorge Ignacio Palma
- Juliane Lipka
- Justine Cathrine Rosenkrantz
- Kanae Kijima
- Karla Homolka
- Katarzyna Onyszkiewiczowa
- KD Kempamma
- Laura Crispoldi
- Laurie Dann
- Learchus (regicide)
- Lê Thanh Vân
- Lin Yu-ju (criminal)
- Livilla
- Locusta
- Louisa May Merrifield
- Lowell Amos
- Mamoru Takuma
- Margarita Sánchez Gutiérrez
- Maria Spinola
- Marie-Thérèse Joniaux
- Marie Alexandrine Becker
- Mark Codman
- Martha Rendell
- Martha Wise
- Marybeth Davis
- Mary Ansell
- Masaru Okunishi
- Masumi Hayashi (murderer)
- Mateo Banks
- Ma Anand Sheela
- Michael Riley (murderer)
- Mohan Kumar (serial killer)
- Munatia Plancina
- Nadir Sedrati
- Nirut Sonkhamhan
- Paul Petrillo
- Philadelphia poison ring
- Pierre Laget
- Pilar Prades
- Pino III Ordelaffi
- Pleasant Pruitt
- Polly Bartlett
- Rebecca Copin
- Rebecca Hawkins (pioneer woman)
- Rebecca Smith (infanticide)
- Richard McGown
- Richard Roose
- Robert George Clements
- Robert Spangler
- Rodica Negroiu
- Ronald Clark O'Bryan
- Rosemary Ndlovu
- Sadame Sugimura
- Santiago Garduno
- Sarah Whiteling
- Sebastiano de Montecuccoli
- Shauna Taylor case
- Sofie Johannesdotter
- Spana Prosecution
- Stephen Port
- Steven David Catlin
- Susi Olah
- Terri Rachals
- Thekla Popov
- Thomas Coutts (colonist)
- Thomas Griffiths Wainewright
- Valery Nekhaev
- Véronique Frantz
- Vishakanya
- Vyacheslav Solovyov (serial killer)
- Walter Horsford
- William Dale Archerd
- William Palmer (murderer)
- Władysław Mazurkiewicz (serial killer)
- Yadira Narváez
- Yiya Murano
- Yoarashi Okinu
- Yoshinori Ueda (serial killer)
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