WKA

WKA is a three-letter acronym that may refer to:


 * World Kickboxing Association (WKA)
 * World Karting Association
 * Wānaka Airport, New Zealand
 * United States v. Wong Kim Ark, a U.S. Supreme Court case concerning citizenship
 * Witch-King of Angmar, a character from the works of J.R.R. Tolkien