磁鼓内存（英语：Drum memory）是一种依靠磁介质的数据保存设备，为20世纪50年代和60年代计算机所用内存的早期形式，由Gustav Tauschek于1932年在奥地利发明。磁鼓为这套机制的主要工作储存单元，透过穿孔纸带或者打孔卡加载、取出数据。当时许多计算机采用了这种磁鼓内存，以至于它们常常被叫做“鼓机”（drum machines）。不过不久之后，磁芯内存等其他技术取代了磁鼓器成为了主要的保存媒体，直到最后半导体内存进入了保存媒体的领域。

Drum memory was a magnetic data storage device invented by Gustav Tauschek in 1932 in Austria. It was widely used in the 1950s and into the 1960s as computer memory.

For many early computers, drum memory formed the main working memory of the computer. It was so common that these computers were often referred to as drum machines. Some drum memories were also used as secondary storage.