列车通信网络（英语：Train Communication Network，简称TCN），是一种以计算机网络为核心的分布式网络控制系统，作为铁路机车车辆的控制、检测和诊断系统；该国际标准由国际电工委员会（IEC）和国际铁路联盟（UIC）联合制定，即IEC 61375，同时电气电子工程师学会（IEEE）也引用该项标准作为列车通信网络标准，即IEEE 1473-T。

车载网络总体结构包含两级总线层次架构，分别为可用于连接各节可动态编组车辆间的绞线式列车总线（Wire Train Bus，WTB），以及用于连接一节车辆或一组车辆单元内部各种设备的多功能车辆总线（Multifunction Vehicle Bus，MVB）。

TCN is the Sydney flagship television station of the Nine Network in Australia and is located at Willoughby. The licence, issued to a company named Television Corporation Ltd headed by Frank Packer, was one of the first four licences (two in Sydney, two in Melbourne) to be issued for commercial television stations in Australia. TCN-9 is the home of the NRL coverage and Nine News bulletins.