The name Nathalia is a girl's name of Spanish origin. The more familiar spelling Natalia currently sits much further up the list and has even made two brief appearances in the Top 100 during the last decade. Nathalia on the other hand has never been a particularly popular choice. Choosing this spelling will undoubtedly create some confusion, but it still makes a good choice especially if you have a Portuguese heritage. Two young actresses bear this name: Nathalia Dill from Brazil and Nathalia Ramos from Spain. Nathalia Crane was an American poet and novelist.