Channel 18 or TV 18 may refer to:
TV18, an Indian television broadcasting company of the Network 18 Group based in Mumbai TV-18, a television content rating
Canada
The following television stations operate on virtual channel 18 in Canada: CICO-DT-18 in London, Ontario CJPC-DT in Rimouski, Quebec
Mexico
The following television stations operate on digital channel 18 in Mexico: XHCRT-TDT in Cerro Azul, Veracruz XHCTAG-TDT in Aguascalientes, Aguascalientes XHHAS-TDT in Huasabas, Sonora XHSFS-TDT in San Felipe de Jesús, Sonora XHSGU-TDT in Guaymas, Sonora