| Junior Petunia | | UK made clothing and accessories for girls and boys ages 6 months to 8 years. |
| Just Kidd'n | | Offers playwear and reversible clothing for infants, toddlers and kids. |
| Just Kids Clothes | | Canadian site offering rainwear, fleece outerwear, sunsuits and shower gifts. |
| Kakadoo Kids | | Selling sun protective clothing and swimwear for children. |
| Kangaroo Korner | | Gifts, layette selections, and resort wear for girls and boys. |
| Kathys Loving Stitches | | Handmade smocked dresses, Christening gowns, First Communion dresses and boy's rompers. |
| kibodio | | Offers a variety of boys and girls clothing including pants, dresses, skirts, sweaters, and t-shirts. |
| Kids & Color | | Fun, colorful clothes for kids sizes infant - youth. |
| Kids and Fashion | | Mix and match separates for boys and girls. Combine clothes in a virtual fitting room. |
| Kids Cavern | | Clothes and shoes from designer brands from age newborn to 16yrs. |
| Kids Kaper | | Swimwear, blankets, rainwear and casual apparel for girls and boys from 0 to 12 years. |
| Kids Mart | | Discounted apparel in sizes preemie to 16. Located in Australia. |
| Kids Outlet | | Manufacturer's outlet for the boys and girls upscale clothing line of Will'beth. Infant through youth formal and casual wear. |
| Kids Plus | | Brand names for babies and children sizes newborn to 16, accessories and gifts. |
| Kids Wearhouse | | Offering a variety of styles and sizes from preemie through toddlers, as well as bibs and towels. Includes a gift registry. | |
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