Karen Zambos is an American fashion designer based in Los Angeles, California. She designs her own Karen Zambos Vintage Couture clothing line, as well as a belt collection called Elegantly Waisted, and co-designs a handbag collection called Zambos & Siega. Karen Zambos designs are very popular among celebrities such as Nicole Richie, Jessica Alba, Fergie, Kourtney Kardashian, Paris Hilton, Selma Blair and many others.