Kingcat.co.uk
- Anime action figures, DVDs, and imported games from shows like Dragon Ball, Inu Yasha, and Sailor Moon.
- http://www.storeone.net/cgi/kcm/cgi-bin/cp-app.cgi

KirinPro Kansai!
- A doujinshi finding service for new and old titles. Accepts international orders.
- http://kirinpro-kansai.htmlplanet.com/

Kaname's Anime and Manga Goods
- A personal collector selling manga, doujinshi, trading cards, clearfiles, shitajiki, and other memorabilia.
- http://www.sapphirus.net/clearance

Kitty's Anime Tavern
- Specializes in fan art commissions and find-it items.
- http://www.kittystavern.com

Kjakz Collectibles
- Sanrio and San-X stationery.
- http://www.kjakz.50megs.com

Kimono My House
- Large catalog of new and vintage Japanese toys, including Pokemon, Sailor Moon, Godzilla, Astroboy and Ultraman.
- http://www.kimonomyhousetoys.com

Kikiwai
- Cels, books, CD, cards, ufo catchers, and wall scrolls.
- http://www.kikiwai.com/

Kanoko Dolls
- Jenny, Blythe, Licca, and Sailor Moon dolls.
- http://www.kanoko.com/