What is the name of the connector used on a network cable?

UTP most commonly used network cable
Cat 5 and Cat 6 network cables (also called 10BaseT) use an RJ-45 connector. Older thinwire ethernet (10Base2) uses BNC coaxial connect. Original thickwire ethernet used a special thicker cable with a proprietary AUI connector. The old IBM Token Ring system also used its own special cabling and connectors.