- Jacobs, Marc - American designer and former vice president of women's design at Perry Ellis. Site features collections, advertisements, and information on the company, its stores, and the charities with which it is involved.
- James & August - Auckland, New Zealand based underwear, outerwear and sleepwear designers. Site includes news, current collection, list of retailers, contact information and online shopping.
- Jasinski, Margaret - Designer of women's clothing based in Northampton, Massachusetts. Site includes collections, design philosophy, contact information, and request for partnership proposals.
- Jitrois, Jean-Claude - French designer. Site includes collections, contacts, boutique locations, and press area.
- Johnson, Betsey - American designer. Site includes collections, images from shows, biography and store locations.
- Jon, Anand - New York designer originally from India. Site includes bio, career highlights, partial client list, events, press clippings, personal photos, video clips, studio address and contact information, store locator, and collections.
- Jones, Adam - British-born designer, based in Paris. Site includes bio, collections, press clippings and contact information.