To be pedantic, the "French" in French fries refers to the cut of the potato, ie 'julienne'. If you want to name them from where they originated they would be Belgian fries.
Useless factoid #849,340: the Belgians don't put ketchup on their fries. They prefer mayonnaise.
SpyNavy
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)