麦加帝斯（英语：Megadeth），麦加帝斯是来自美国加州洛杉矶的鞭击金属乐团，吉他手戴夫·马斯泰恩(Dave Mustaine)1983年被金属制品开除后与贝斯手大卫·艾利弗森(David Ellefson)成立。麦加帝斯为美国鞭击金属界之先驱，与炭疽热(Anthrax)、金属制品(Metallica)、超级杀手(Slayer)并称「四大鞭金」，对鞭击金属的发展与推广有极大贡献。麦加帝斯的成员变化频繁，最早有四名成员，目前有马斯泰恩、布罗德里克、洛门佐和德莱维尔四名成员，其中马斯泰恩是该乐队的灵魂人物。麦加帝斯的音乐特色为节奏快速、编曲复杂、高技术性，歌词多描述死亡、战争、政治和宗教。

Megadeth is an American thrash metal band from Los Angeles, California. The group was formed in 1983 by guitarist Dave Mustaine and bassist David Ellefson, shortly after Mustaine's dismissal from Metallica. A pioneer of the American thrash metal scene, the band is credited as one of the genre's "big four" with Anthrax, Metallica and Slayer, responsible for thrash metal's development and popularization. Megadeth plays in a technical style, featuring fast rhythm sections and complex arrangements. Themes of death, war, politics and religion are prominent in the group's lyrics.