A list of events in 2003 related to serial killers.
January[]
- 2 — Anthony Hardy is apprehended.
February[]
- 3 — Jaroslav Stodola and Dana Stodolová are apprehended.
- 11 — Timothy Joseph McGhee is born.
- 23 — Carl Patton is apprehended.
March[]
- 13 — Lenko Latkov is apprehended.
- 29 — Jia Jianhu is apprehended.
- 29 — Larme Price is apprehended.
April[]
- 1 — Terri Rachals is released.
- 5 — Denis Pischikov is apprehended.
- 12 — Cory Morris's 5th known victim, Julie Castillo, is found.
- 12 — Cory Morris is apprehended.
- 12 — Robert Nicolaus died.
- 19 — Zhai Pengchao is murdered by Huang Yong.
- 22 — Juan Rodriguez Chavez died.
- ? — Hugh Morse died.
May[]
- 17 — Diane O'Dell is apprehended.
- 24 — Datrell Woods is murdered by Ronald Dominique.
- 24 — Chen Yongfeng is apprehended.
- 27 — Derrick Todd Lee is apprehended.
- 27 — Ensio Koivunen died.
- ? — Chen Jui-chin is apprehended.
June[]
- 17 — Paul Durousseau is apprehended.
- 26 — Michel Fourniret is apprehended.
- ? — Li Pingping is apprehended.
July[]
- 1 — Chen Fuzhao is apprehended.
- 3 — Alfredo Galán is apprehended.
- 18 — Manuel Octavio Bermúdez is apprehended.
August[]
- 8 — Chang Jen-bao is apprehended.
- 8 — Michelle Knotek is apprehended.
- 8 — Yevgeny Petrov is apprehended.
- 22 — Mark Beckles died.
- 22 — Jaroslava Fabiánová is apprehended.
September[]
- 5 — Willie Hodges is apprehended.
- 5 — Adolph Laudenberg is apprehended.
- 11 — Ronald Macon receives Life imprisonment.
- 13 — Lenko Latkov died.
- 17 — Henry Lee Jones is apprehended.
- 19 — Viorel Chirilă died.
- 26 — "Green River Killer"'s victim, Marie Malvar is found.
- 30 — Chester Turner is apprehended.
- ? — Mikhail Yudin is apprehended.
October[]
- 9 — Gustavo Romero Tercero is apprehended.
- 15 — Pierre Chanal died.
- 24 — Anthony Allen Shore is apprehended.
November[]
- 3 — Yang Xinhai is apprehended.
- 8 — Eugene Barrett died.
- 9 — Sipho Dube is apprehended.
- 12 — Huang Yong is apprehended.
- 15 — Roberto Arguelles died.
- 18 — Elfriede Blauensteiner died.
- 28 — Roberto Spinetti is apprehended.
December[]
- 9 — Carol Bundy died.
- 10 — David Maust is apprehended.
- 12 — Robert Stansbury died.
- 15 — Charles Cullen is apprehended.
- 23 — Faye Copeland died.
- 26 — Huang Yong died.
- ? — Francisco das Chagas Rodrigues de Brito is apprehended.
- ? — Waisale Waqanivalu is apprehended.
Unknown[]
- ? — Ahn Young-mi is apprehended.
- ? — Mark Beckles is apprehended.
- ? — Fyodor Bogdanov is apprehended.
- ? — Matias Cerón died.
- ? — Yuri Chernikov is apprehended.
- ? — William Cumbajín is apprehended.
- ? — Mark Ford is apprehended.
- ? — Dennis Foskett is apprehended.
- ? — Antonia Giampietro is apprehended.
- ? — Ivan Hill is apprehended.
- ? — Angelo Howard is apprehended.
- ? — Vitaly Isupov is apprehended.
- ? — Chandrakant Jha is apprehended.
- ? — Kim Do-ryong is apprehended.
- ? — Jacqueline López González is apprehended.
- ? — Makson Oliveira da Costa is born.
- ? — Ramón Pardo Valenzuela is apprehended.
- ? — Charles Sobhraj is apprehended.
- ? — Coleen Thompson is apprehended.
- ? — Alexey Tigoyev is apprehended.
- ? — Jean Rock is murdered by Camille Cléroux.