Rama IX Bridge (Thai: สะพานพระราม ๙, RTGS: Saphan Phra Ram Kao, pronounced [sā.pʰāːn pʰráʔ rāːm kâːw]) is a bridge in Bangkok, Thailand over the Chao Phraya River.

[1][2][3] The bridge was named in the honor of King Bhumibol Adulyadej's 60th birthday.

The opening date coincided with the king's birthday, with a million people walking over it.

Part of the Rama III-Dao Khanong-Western Bangkok Outer Ring Road expressway project, it is intended to relieve traffic congestion on the existing single-pylon bridge.

[10] The gradually sloping viaducts on each side of the river are dual-double-T, post-tensioned, concrete structures with thirteen 50-metre double spans on each bank cast in-situ with a steel travelling shutter, up to 40 metres above the ground for sufficient shipping clearance.