No, maitake and shiitake are not the same. Maitake is a variety of mushrooms that is native to Japan. At the same time, shiitake is a variety of mushrooms native to China.  Both mushrooms are used in cooking, but they have different flavors and textures.  Maitake mushrooms are often used in stir-fries and soups, while shiitake mushrooms are often used in stews and sauces.