埃拉斯·欧萨·贝茨（英语：Ellas Otha Bates，1928年12月30日－2008年6月2日），艺名为波·迪德利（Bo Diddley），是一位美国节奏布鲁斯歌手、吉他手和词曲作者（署名通常为埃拉斯·麦克丹尼尔（Ellas McDaniel））。他是布鲁斯过渡到摇滚的关键人物，对很多后辈有深远的影响，包括埃尔维斯·普雷斯利、滚石乐队、埃里克·克莱普顿等等。他以技术创新闻名，比如他标志性的方形吉他。他创造的节拍型至今仍是嘻哈音乐、摇滚乐和流行乐的基石。迪德利于1987年进入摇滚名人堂。他也获得了格莱美终身成就奖。 　　Ellas McDaniel (born Ellas Otha Bates, December 30, 1928 – June 2, 2008), known as Bo Diddley, was an American R&B singer, guitarist, songwriter and music producer who played a key role in the transition from the blues to rock and roll, and influenced artists including Elvis Presley， Buddy Holly, the Beatles, the Rolling Stones, the Yardbirds, Eric Clapton,the Who, Jimi Hendrix and Parliament-Funkadelic。 　　His use of African rhythms and a signature beat, a simple five-accent hambone rhythm, is a cornerstone of hip hop, rock, and pop music. In recognition of his achievements, he was inducted into the Rock and Roll Hall of Fame and received Lifetime Achievement Awards from the Rhythm and Blues Foundation and a Grammy Award from the National Academy of Recording Arts and Sciences. He is also recognized for his technical innovations, including his distinctive rectangular guitar.