Gruyere is definitely not the same as Swiss cheese (Sweitzerkaese), which is called Emmentaler in Switzerland and elsewhere in Europe, and is produced mostly in the German-speaking regions of Switzerland. Rather, Gruyere, as it is known in French (also known as Greyerzer in German) comes from some quaint Swiss village. Guyere does not have holes in it and has a stronger, saltier flavor than Emmentaler.