No, Louisiana was named JUST for King Louis XIV - no Anna was involved...that's just a myth that has been passed around for years.
Here's a link to the Louisiana Secretary of State's website: http://www.sos.louisiana.gov/around/brief/brief-1.htm
Look at the third paragraph, "1682 The French explorer Sieur de La Salle, the first to descend the Mississippi to its mouth, took possession "of the country known as Louisiana," and named it for the reigning monarch of France, Louis XIV. "
Here's a link to the Louisiana Secretary of State's website:
http://www.sos.louisiana.gov/around/brief/brief-1.htm
Look at the third paragraph, "1682 The French explorer Sieur de La Salle, the first to descend the Mississippi to its mouth, took possession "of the country known as Louisiana," and named it for the reigning monarch of France, Louis XIV. "