The Kowloon-Canton Railway (split into MTR East Rail Line and Guangshen Railway now) commences service between Kowloon and Canton.

Guangshen railway or GuangzhouShenzhen railway (Chinese: or ), also known as the Chinese section of the KowloonCanton railway () in 19111949, is a railway in Guangdong province in the People's Republic of China, between Guangzhou and Shenzhen. It is operated by Guangshen Railway Co., Ltd., a publicly traded company.

With a length of 147 kilometres, it was the first railway in the People's Republic of China to reach the speed of 220 km/h in some sections, though it is limited to about 180 km/h during commercial operation. Now it has four tracks between Guangzhou East and Shenzhen railway station. Line 1 and 2 are up-direction and down-direction 200-km/h (currently restricted to 180 km/h in operation) passenger lines for CRH EMU respectively, and Line 3 and 4 are up-direction and down-direction 160-km/h (currently restricted to 140 km/h in operation) mixed passenger and freight line respectively. In order to reduce the interference to passenger trains in the daytime from lower-speed freight trains, most freight trains will be scheduled to run at night.

Guangshen railway connects with several other important railways to different directions. It links Jingguang railway and Guangmao railway in Guangzhou, Jingjiu railway in Dongguan (with which shares two regular speed track), and the East Rail line to Hong Kong at the southern end of the railway. Besides, there are some branch lines along Guangshen Railway, such as Pingyan railway to Yantian Port, Pingnan railway to Shenzhen West railway station and also the line to Huangbu Port.

Cross-border services from Hong Kong to Dongguan (Changping), Guangzhou East, Foshan and Zhaoqing, as well as to Beijing West and Shanghai use its route.

The Kowloon–Canton Railway (KCR; Chinese: 九廣鐵路; Cantonese Yale: Gáugwóng Titlouh) is a railway network in Hong Kong. It was owned and operated by the Kowloon-Canton Railway Corporation (KCRC) until 2007. Rapid transit services, a light rail system, feeder bus routes within Hong Kong, and intercity passenger and freight train services to China on the KCR network, have been operated by the MTR Corporation since 2007.

While still owned by its previous operator, the KCR network (which is wholly owned by the Hong Kong Government through the KCRC) has been operated by the MTR Corporation Limited under a 50-year, extendible, service concession since 2 December 2007. The two companies have merged their local metro lines into one unified fare system. Immediately after the merger, steps were taken to integrate the network into the same fare system as the MTR, and gates between the two networks were removed in several stages in 2008. Although the MTR Corporation is a listed company, the Hong Kong Government is the controlling shareholder with a stake of about 75%.

In 2006, the local KCR local passenger train network (i.e. intercity services excluded) recorded an annual ridership of 544 million.