Udo can mean the following: A flowering plant Aralia cordata (?? in Japanese) found in Japan. A common male first name in German-speaking countries. People named Udo include: Udo Udo Beyer, German shot put champion Udo Bullmann, politician, MEP Udo Dirkschneider, heavy metal vocalist Udo Erasmus, nutritionist, creator of Udo's Choice Food Pyramids Udo Hempel, road and track cyclist U