电子连接器（也常被称为电路连接器，电连接器），是连接电气线路的一种导体设备。它广泛地应用于各种电气线路中，起着连接或断开电路的作用。这种连接可能是暂时并方便随时插拔的，也可能是电气设备或导线之间永久的结点。

An electrical connector is an electro-mechanical device for joining electrical circuits as an interface using a mechanical assembly. Connectors consist of plugs (male-ended) and jacks (female-ended). The connection may be temporary, as for portable equipment, require a tool for assembly and removal, or serve as a permanent electrical joint between two wires or devices. An adapter can be used to effectively bring together dissimilar connectors.