Jalan Klang Lama is a road through the Klang Valley between Selangor and Kuala Lumpur. Also known as Old Klang Road, it was constructed by the British between 1905 and 1908, at a time when there was no other highway or expressway in the area. This was Klang Road until 1959, when the Kuala Lumpur-Klang Highway was built to reduce the distance between the two towns. From then on, the old road became known as Old Klang Road.
There was a time when "Klang Road" connected Kuala Lumpur to Klang. Since then, the road had been fragmented into different sections, many of which have been renamed, creating latter-day roads such as Jalan Syed Putra and New Pantai Expressway.
Today's Old Klang Road has been fragemented into two parts. The eastern section starts at the interchange with Jalan Syed Putra, the Federal Highway (Federal Route 2) and the East-West Link Expressway (E37). This section ends at the start of the New Pantai Expressway. Where the New Pantai Expressway ends, Old Klang Road continues once more, running west until it ends at a junction in front of the Damansara-Puchong Expressway (LDP).