These are the official results of the Women's 4 × 400 metres event at the 2003 IAAF World Championships in Paris, France. Their final was held on Sunday 31 August 2003 at 19:10h.

Final RANKNATIONATHLETESTIME• Me'Lisa Barber• Demetria Washington• Jearl Miles Clark• Sanya Richards 3:22.63• Olesya Zykina• Yuliya Pechenkina• Anastasiya Kapachinskaya• Natalya Nazarova 3:22.91• Sandie Richards• Allison Beckford• Ronetta Smith• Lorraine Fenton 3:22.924.• Claudia Marx• Birgit Rockmeier• Claudia Hoffmann• Grit Breuer 3:26.255.• Monika Bejnar• Małgorzata Pskit• Anna Jesień• Grażyna Prokopek 3:26.646.• Lee McConnell• Jennifer Meadows• Catherine Murphy• Tasha Danvers 3:26.677.• Mireille Nguimgo• Carole Kaboud Mebam• Delphine Atangana• Hortense Bewouda 3:27.08(NR)—• Fatou Bintou Fall• Mame Tacko Diouf• Aminata Diouf• Amy Mbacké Thiam DQ

Heats Held on Saturday 30 August 2003

Heat 1 RANKNATIONATHLETESTIME1.• Sandie Richards• Ronetta Smith• Michelle Burgher• Allison Beckford 3:26.22 2.• Helen Karagounis• Jennifer Meadows• Catherine Murphy• Lee McConnell 3:26.443.• Anna Guzowska• Monika Bejnar• Anna Jesień• Grażyna Prokopek 3:26.664.• Hariklia Bouda• Fani Halkia• Georgia Koumnaki• Hrisoula Goudenoudi 3:33.885.• Kalpana Reddy• Sathi Geetha• Sagardeep Kaur• Manjeet Kaur 3:42.25—• Lauren Hewitt• Susan Andrews• Tamsyn Lewis• Jana Rawlinson DNS

Heat 2 RANKNATIONATHLETESTIME1.• Svetlana Pospelova• Svetlana Goncharenko• Olesya Zykina• Natalya Nazarova 3:27.972.• Mireille Nguimgo• Carole Kaboud Mebam• Delphine Atangana• Hortense Bewouda 3:29.403.• Marie-Louise Bévis• Anita Mormand• Virginie Michanol• Solen Désert 3:30.294.• Katsiaryna Bobryk• Natallia Solohub• Iryna Khliustava• Sviatlana Usovich 3:31.405.• Danielle Perpoli• Monika Niederstatter• Maria Teresa Schutzmann• Virna De Angeli 3:32.006.• Monika Gachevska• Mariyana Dimitrova• Ekaterina Maschova• Nedyalka Nedkova 3:33.92—• Olabisi Afolabi• Doris Jacob• Oluyemi Fagbamila• Rosemary Okafor DNS

Heat 3 RANKNATIONATHLETESTIME1.• Me'Lisa Barber• DeeDee Trotter• Sanya Richards• Jearl Miles Clark 3:24.572.• Claudia Marx• Birgit Rockmeier• Claudia Hoffmann• Grit Breuer 3:27.973.• Fatou Bintou Fall• Mame Tacko Diouf• Aminata Diouf• Amy Mbacké Thiam 3:28.374.• Nataliya Pyhyda• Olga Mishchenko• Oleksandra Ryzhkova• Antonina Yefremova 3:29.655.• Liliana Allen• Gabriela Medina• Mayra González• Ana Guevara 3:29.746.• Tatyana Roslanova• Natalya Torshina• Olga Tereshkova• Svetlana Bodritskaya 3:31.207.• Irina Lenskiy• Svetlana Gnezdilov• Anat Morad• Anna Tkach 3:32.99 (NR)

References Results