Yes, you can apply stains with a roller, especially for larger surfaces like decks.
While a brush is often used for detail work and smaller areas, a roller can speed up the staining process and provide a more even application on flat surfaces. However, it is important to consider the type of stain and the surface you are staining. Thicker stains may be more difficult to apply with a roller. Proper technique and the right roller nap are key to achieving a good result. For example, if you are using a semi-transparent or semi-solid deck stain, a roller can efficiently cover a large deck area while still allowing the wood grain to show through.
