唱片骑师（英语：Disc Jockey），简称为DJ。是指选择并且播放事先录好的音乐为他人带来娱乐的人，工作地点可能是电视台或广播点唱节目，或者在其他一些聚会中表演，比如舞厅、舞会或高中舞会。

DJ有许多不同的类型，以符合不同的表演场合（比如广播室或舞厅）和不同听众（比如爵士迷或嘻哈迷）的需求。一个DJ的表演风格和表演技巧必须反映出这些需求。比如说，结婚典礼上的DJ除了播放音乐外，他们可能也必须扮演典礼主持人的角色，要去介绍宴会主角以及带领来宾交互等。锐舞派对中的DJ则必须在他们的表演中呈现出较多的放歌技巧，以维持现场的气氛。

A disc jockey (abbreviated DJ, D.J. or deejay) is a person who plays a mix of recorded music for an audience, either to a radio, television or Internet audience if the mix is broadcast over the airwaves or via another medium (e.g., cable television or online) or the audience in a venue such as a bar, nightclub or dance club. In venues such as a club or dance events such as a rave or Electronic Dance Music festival, this is typically an audience which dances to the music, which is played through a powerful sound reinforcement system. In some expensive lounges and restaurants, there may be a DJ, but the audience listens to the music rather than dancing. Club DJs developed the skill to seamlessly transition from one recording of a song to another by using turntable skills that involve the simultaneous manipulation of a two record turntables and a DJ mixer. Key skills include matching the beats of two records, cueing up the next song to the desired start point with headphones and using their knowledge of music genres and artists to select songs that will keep the audience dancing.