Rapid KL (stylized as rapidKL) is a public transportation system owned by Prasarana Malaysia and operated by its subsidiaries Rapid Rail and Rapid Bus. The acronym stands for Rangkaian Pengangkutan Integrasi Deras Kuala Lumpur, which translates to Kuala Lumpur Rapid Integrated Transport Network in the Malay language. Rapid KL, with its 204.1 km (126.8 mi) of metro railway and 5.6 km (3.5 mi) of BRT carriageway, is part of the Klang Valley Integrated Transit System, operating throughout Kuala Lumpur and Selangor's satellite cities in the Klang Valley area.

Rapid Bus, a Prasarana Malaysia subsidiary company, currently operates one of the largest fleets of Scania K-series buses, with a total of 830 single-deck K250UB and K270UBs with three different service brands.

Some of the real pictures