| # | Date | Cover | Sommaire | |
| 1 | 12/2000 | | 1/ An Harley Quinn Romance — 38 pages Karl Kesel / Terry Dodson / Rachel Dodson ➜ Batman - No Man's Land (DC Classiques) n° 4 — 04/2015 ➜ Joker + Harley - Bad Romance — 08/2024 ➜ Harley Quinn Solo — 10/2024 2/ <Pin-Up: Harley Quinn> — 1 page Matt Idelson / Terry Dodson / Rachel Dodson ✗ inédit | |
| 2 | 01/2001 | | A Heart Broken in Two! — 23 pages Karl Kesel / Terry Dodson / Rachel Dodson ➜ Harley Quinn Solo — 10/2024 | |
| 3 | 02/2001 | | Welcome to the Party! — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson ➜ Harley Quinn Solo — 10/2024 | |
| 4 | 03/2001 | | Wilde Life — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson ➜ Harley Quinn Solo — 10/2024 | |
| 5 | 04/2001 | | Larger Than Life — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson ➜ Harley Quinn Solo — 10/2024 | |
| 6 | 05/2001 | | Who Wants to Rob a Millionaire? — 21 pages Karl Kesel / Terry Dodson, Craig Rousseau / Rachel Dodson, Wayne Faucher ➜ Harley Quinn Solo — 10/2024 | |
| 7 | 06/2001 | | Gods and Mobsters — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson ➜ Harley Quinn Solo — 10/2024 | |
| 8 | 07/2001 | | Be Cruel 2 Your School — 23 pages Karl Kesel / Pete Woods / Mark Lipka ➜ Harley Quinn Solo — 10/2024 | |
| 9 | 08/2001 | | Quintessence, Part 1: Shop 'Til You're Dropped! — 23 pages Karl Kesel / Michael Kaluta (as Mike Kaluta), Pete Woods / Michael Kaluta (as Mike Kaluta), Mark Lipka ✗ inédit | |
| 10 | 09/2001 | | Quintessence, Part 2: Brilliant Mistake — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson ✗ inédit | |
| 11 | 10/2001 | | Quintessence, Part 3: The Girl Is Bats! — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson ✗ inédit | |
| 12 | 11/2001 | | Quintessence Conclusion: A Date Which Will Live in Infamy! — 30 pages Karl Kesel / Terry Dodson / Rachel Dodson ✗ inédit | |
| 13 | 12/2001 | | Night and Day — 22 pages Karl Kesel / Pete Woods / Mark Lipka ✗ inédit | |
| 14 | 01/2002 | | Bright Lights, Big City, Part 1: Welcome to Metropolis — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson ✗ inédit | |
| 15 | 02/2002 | | Metropolis Mailbag — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson, Karl Kesel ✗ inédit | |
| 16 | 03/2002 | | Both Sides Now — 21 pages Karl Kesel / Terry Dodson, Phil Noto, Craig Rousseau / Rachel Dodson, Phil Noto, Dan Davis ✗ inédit | |
| 17 | 04/2002 | | #1 Am the Loneliest Number — 21 pages Karl Kesel / Terry Dodson / Rachel Dodson ✗ inédit | |
| 18 | 05/2002 | | The Bride of Bizarro! — 22 pages Karl Kesel / Terry Dodson / Rachel Dodson ✗ inédit | |
| 19 | 06/2002 | | Going Out with a Bang! — 23 pages Karl Kesel / Terry Dodson / Rachel Dodson ✗ inédit | |
| 20 | 07/2002 | | Wouldn't Be Caught Dead There — 22 pages Karl Kesel / Brandon Badeaux / Dan Davis ✗ inédit | |
| 21 | 08/2002 | | Hell and Highwater! — 22 pages Karl Kesel / Brandon Badeaux / Dan Davis ✗ inédit | |
| 22 | 09/2002 | | The Ballad of Harley Quinn — 21 pages Karl Kesel / Brandon Badeaux / Rodney Ramos ✗ inédit | |
| 23 | 10/2002 | | Men Are from Mars... Women Are from Hell! — 22 pages Karl Kesel / Craig Rousseau / Dan Davis ✗ inédit | |
| 24 | 11/2002 | | I Ain't Got No Body...! — 22 pages Karl Kesel / Craig Rousseau / Dan Davis ✗ inédit | |
| 25 | 12/2002 | | Once More, with Feeling! — 22 pages Karl Kesel / Craig Rousseau / Dan Davis ✗ inédit | |
| 26 | 01/2003 | | Vengeance Unlimited, Part One — 22 pages A. J. Lieberman / Mike Huddleston / Troy Nixey ✗ inédit | |
| 27 | 02/2003 | | Vengeance Unlimited, Part Two — 23 pages A. J. Lieberman / Mike Huddleston / Troy Nixey ✗ inédit | |
| 28 | 03/2003 | | Vengeance Unlimited, Part Three — 22 pages A. J. Lieberman / Mike Huddleston / Troy Nixey ✗ inédit | |
| 29 | 04/2003 | | Vengeance Unlimited, Part Four — 22 pages A. J. Lieberman / Mike Huddleston / Troy Nixey ✗ inédit | |
| 30 | 05/2003 | | Vengeance Unlimited, Part Five — 22 pages A. J. Lieberman / Mike Huddleston / Troy Nixey ✗ inédit | |
| 31 | 06/2003 | | Who Steals from a Thief? — 22 pages A. J. Lieberman / Nathan Fox / Nathan Fox ✗ inédit | |
| 32 | 07/2003 | | The Year of the Rat — 22 pages A. J. Lieberman / Steve Yeowell / Steve Yeowell ✗ inédit | |
| 33 | 08/2003 | | Behind Blue Eyes, Part One — 22 pages A. J. Lieberman (as Andy Lieberman) / Mike Huddleston / Troy Nixey ✗ inédit | |
| 34 | 09/2003 | | Behind Blue Eyes, Part Two — 22 pages A. J. Lieberman (as Andy Lieberman) / Mike Huddleston / Troy Nixey ✗ inédit | |
| 35 | 10/2003 | | Behind Blue Eyes, Part Three — 22 pages A. J. Lieberman (as Andy Lieberman) / Mike Huddleston / Troy Nixey ✗ inédit | |
| 36 | 11/2003 | | Behind Blue Eyes, Part Four — 22 pages A. J. Lieberman (as Andy Lieberman) / Mike Huddleston / Troy Nixey ✗ inédit | |
| 37 | 12/2003 | | Behind Blue Eyes, Part Five — 22 pages A. J. Lieberman (as Andy Lieberman) / Mike Huddleston / Troy Nixey ✗ inédit | |
| 38 | 01/2004 | | <untitled> — 22 pages A. J. Lieberman (as Andy Lieberman) / Charlie Adlard (as Charles Adlard) / Charlie Adlard (as Charles Adlard) ✗ inédit | |
| One-Shot 1 | 12/1999 | | Batman: Harley Quinn #1 — 48 pages Paul Dini / Yvel Guichet / Aaron Sowd ✗ inédit | |
| One-Shot 2 | 10/2001 | | Our Worlds at War Casualties of War: Our Fighting Forces — 38 pages Karl Kesel / Aron Wiesenfeld, Paul Grist, Paul Chadwick, Amanda Conner, Steve Lieber / Aron Wiesenfeld, Paul Grist, Paul Chadwick, Jimmy Palmiotti, Steve Lieber ✗ inédit | |