One of the most widely used public transportation system in Kuala Lumpur is the monorail service, spanning a length of 8.6km, connecting KL Sentral with the Golden Triangle area. Managed by RapidKL, it has 11 elevated stations.

Kuala Lumpur has two light rail transit systems: the Kelana Jaya Line and Ampang Line, both of which are operated by RapidKL.

The Kelana Jaya Line connects Kelana Jaya and Gombak: it primarily serves the south Petaling Jaya and southwest and central KL areas. The 29km rail system is the third longest fully automated driverless metro system in the world: it has 16 elevated and five underground train stops.

Meanwhile the Ampang Line is divided into two routes: the first sub-line is Ampang and the second is Sri Petaling. This 27km-long route begins at these two different stations, connects at an interchange stop and ends at the same station up north.

Kuala Lumpur has the most extensive commuter rail system in the country: the first is operated by Keretapi Tanah Melayu and the second by Express Rail Link. They service four routes: the Sentul-Port Klang Line, Rawang-Seremban Line, Rawang-Kuala Kubu Bharu Shuttle Service and KLIA Transit, all of which run routes past KL Sentral.

The most famous of these lines is the KLIA Transit: it is operated by Express Rail Link while the remaining three routes, called the KTM Komuter system, are operated by Keretapi Tanah Melayu. It is one of the most economical and comfortable ways to travel around Kuala Lumpur.