Korail

The Korea Railroad Corporation () is the national railway operator in South Korea. It is branded as KORAIL () and changed its official Korean name () in November 2019. Currently, KORAIL is a government-owned corporation, managed by Ministry of Land, Infrastructure and Transportation.

2016 animated film by Yeon Sang-ho, prequel to Train to Busan

The Intercity Train eXpress-Saemaeul (ITX-Saemaeul; ) are a class of higher-speed trains operated by Korail, the national railroad of South Korea, it was introduced on May 12, 2014, to replace the Saemaeul-ho. The new ITX-Saemaeul trains have a faster maximum speed of 150 kilometers per hour. While they are faster than the Mugunghwa-ho trains, they are still slower than the high-speed KTX. The name was taken from the Saemaul Undong after a public competition to determine the new train's name.

Nuriro () is a class of train operated by Korail, the national railroad of South Korea, it was introduced on June 1, 2009, to replace the short-range Mugunghwa-ho. The train was introduced as a replacement for the Bidulgi-ho/Tongil-ho/Mugunghwa-ho operating system between Seoul and Onyangoncheon, and will replace the short-range Mugunghwa-ho when a new train comes in. However, due to various problems, it is currently operating in Yeongdong Line and Jungang Line as a replacement for Mugunghwa-ho.

Intercity Train eXpress-Cheongchun (ITX-Cheongchun; ) is a class of train operated by Korail, the national railroad of South Korea, introduced on February 28, 2012. ITX-Cheongchun is the successor of the Gyeongchun Line Mugunghwa-ho which operated until December 2010. It is the only Limited express in Korea, and offers services comparable to those in Japan. In fact, it is known to benchmark Japan's Limited express. Korea's first double-decker coach ran on this line. This train connects Seoul, Guri, Namyangju, Gapyeong and Chuncheon. ITX-Cheongchun trains have an average speed of 180 kilometers

Football club in Daejeon, Korea

The Intercity Train eXpress-Maum (ITX-Maum; ) is a semi-high-speed train of Korail, South Korea's national railway operator. It was introduced to replace Mugunghwa-ho and has the same class as ITX-Saemaeul. It began operation on the Gyeongbu Line, Honam Line, Jeolla Line, Jungang Line, Donghae Line, Yeongdong Line, Taebaek Line, and Daegu Line in September 2023. The Korail Class 220000 rolling stock used on the ITX-Maum was manufactured by Dawonsys.