There are five bridges named Thai–Lao Friendship Bridge, with a sixth being under construction
- First Thai–Lao Friendship Bridge (opened in 1994), between Laos and Thailand over the Mekong River (Nong Khai in Thailand with Vientiane in Laos)
- Second Thai–Lao Friendship Bridge (opened in 2007), between Laos and Thailand over the Mekong River (Mukdahan in Thailand with Savannakhet in Laos)
- Third Thai–Lao Friendship Bridge (opened in 2011), between Laos and Thailand over the Mekong River (Nakhon Phanom Province in Thailand with Thakhek, Khammouane Province in Laos)
- Fourth Thai–Lao Friendship Bridge (opened in 2013), between Laos and Thailand over the Mekong River (Chiang Khong District, Chiang Rai Province of Thailand with Houayxay in Laos.)
- Fifth Thai–Lao Friendship Bridge (opened in 2025), between Laos and Thailand over the Mekong River (Bueng Kan Province of Thailand with Pakxan town, Bolikhamxai Province in Laos)
- Sixth Thai–Lao Friendship Bridge (under construction), between Laos and Thailand over the Mekong River
