Cinnamon rolls and cinnamon buns are essentially the same thing, with different names depending on the region. In the United States and Canada, they are typically called cinnamon rolls and are made with a lighter, fluffier dough that is rolled out, filled with cinnamon sugar, and then sliced into individual rolls. In the United Kingdom and other Commonwealth countries, they are known as cinnamon buns and are made with a denser, bread-like dough that is twisted into a spiral shape before baking. Ultimately, both cinnamon rolls and cinnamon buns are delicious treats that are perfect for breakfast, brunch, or dessert.