K-Swiss, Inc. is an American footwear company. It is based in Westlake Village, California. It designs, develops, and markets a range of athletic shoes under the K-Swiss brand and its wholly owned subsidiary Royal Elastics, Inc.

K-Swiss was founded in 1966 in Los Angeles, California, by two Swiss brothers who became interested in tennis after emigrating to the United States, where they introduced the first leather tennis shoes.