DIN连接器是由德国标准化学会（DIN）所制定的一项连接器标准。由于有太多DIN连接器标准，如果不附加编号（如"DIN 41524连接器"），DIN连接器一词并不代表任何一种连接器。在消费电子产品中，"DIN连接器"通常代表由DIN所制定的圆形连接器家族的一个成员。DIN连接器最初用于模拟音频信号的传输，这些连接器有些后来也被用于模拟视频和数字接口，如MIDI或IBM PS/2接口键盘和鼠标电缆。原来的DIN连接器标准已替换为等效的国际标准IEC60130-9。

虽然DIN连接器和XLR端子在外观上相似，但并不兼容。

A DIN connector is an electrical connector that was originally standardized by the Deutsches Institut für Normung (DIN), the German national standards organization. There are DIN standards for a large number of different connectors, therefore the term "DIN connector" alone does not unambiguously identify any particular type of connector unless the document number of the relevant DIN standard is added (e.g., "DIN 41524 connector"). Some DIN connector standards are: