<!-- "none" is a legitimate description when the title is already adequate; see WP:SDNONE -->
thumb|[[Boten–Vientiane railway crossing Vientiane–Boten Expressway]]
Transportation in Laos consists of road, rail, air, and inland water networks.
Rail
thumb|Vientiane station
The 2021 completion of the Boten–Vientiane railway, the Lao section of the Laos–China Railway (LCR), connects Vientiane to Kunming. The railway has transported more than 500,000 passengers from 115 countries and regions since passenger service was launched in April 2023; China doubled cross-border passenger train services in 2025.
Highways
thumb|National Road 13 South
In Laos, there are of roadway, with 1.45% paved with concrete, 12.03% with asphalt concrete and 75.77% with double bituminous surface treatment and 10.75% with gravel road. Right-hand traffic (RHT) is observed in Laos.
Laos is connected across the Mekong River to Thailand by First and Second Thai-Lao Friendship Bridges. Vientiane is linked to Nong Khai by the First Friendship Bridge. The Third Thai-Lao Friendship Bridge began construction in March 2009 linking Nakhon Phanom Province in northeastern Thailand and Khammouane Province in Laos. It was completed on 11 November 2011.
Expressway
thumb|Vientiane toll station of the Vientiane–Boten Expressway
On 20 December 2020, the Vientiane–Vang Vieng Expressway, the first expressway in Laos, was completed. Construction began at the end of 2018 and was initially scheduled to finish in 2021. The road, which includes twin tunnels almost 900 metres long through Phoupha Mountain, shortens the route by 43 km as compared with the existing Route No 13. The expressway toll is 550 kip per kilometre, or about 62,000 kip for a one-way trip between Vientiane and Vang Vieng. The Vientiane-Vang Vieng expressway is the first section of a planned expressway from Vientiane through the northern provinces to Boten in Luang Namtha Province, which borders China.
Water
About of navigable water routes exist in Laos, primarily the Mekong and its tributaries. There are an additional of water routes, which is sectionally navigable by craft drawing less than . and still consisted of one ship in 2023.
Pipelines
Laos has of pipelines for the transport of petroleum products.
Limits
Inaccessibility has historically limited the ability of governments to maintain a presence in some areas and has limited interchange and communication among villages and ethnic groups.
Travel may be done by ox-cart over level terrain or by foot. The steep mountains and lack of roads have caused upland ethnic groups to rely entirely on pack baskets and horse packing for transportation.
There are projects to develop transport networks.