A Combined Drinking Straw with Mixer, disposable or reusable, consisting in a drinking straw to sip beverages with its intake end provided with conveniently shaped radial vanes each provided with a hole at alternate positions which, when immersed into a beverage in any suitable container, impart a whirling effect to said beverage when the user conveniently twirls the drinking straw with his/her hands or fingers, thereby mixing or improving the homogenization and blend of the beverage, being this feature particularly useful with beverages made with ice cream and milk or soda, or flavored powder with milk or other liquids, or even cocktails with ice, and, in addition, it may be provided with appealing advertising attachments and this utensil may be offered to consumers as option to mix beverages by themselves, saving time and energy, particularly in Fast Food Services.