This is usually a thing when between countries, be it for language reasons or just because they thought their title would sound cooler, I guess.
Dawn of the Dead is Zombi, because Zombi 2 needed to start somewhere, right?
Army of Darkness should have been called The Medieval Dead, but I do believe it's known as Captain Supermarket somewhere...
Blood Shack has The Chooper
Phantasm was known as The Never Dead somewhere?
Halloween III was The Last Halloween in the Phillipines?
What else can you think of?