Riedel is a German surname. Notable people with the surname include: August Riedel , German painter Beau Riedel , Canadian-born ice hockey goalie Bruce Riedel , U.S. foreign policy analyst and author Georg Riedel , German composer Georg Riedel , Czech-born Swedish musician Hermann Riedel , German composer Klaus Riedel , German engineer Lars Riedel , German discus thrower Ludwig Riedel , German botanist Oliver Riedel , German musician Ryszard Riedel , Polish blues singer and author of many songs of group Dzem Walter Riedel , German engineer