| Bridge Name: | Krungthep Bridge |
| Native Name: | สะพานกรุงเทพ |
| Carries: | Four lanes of roadway, pedestrians |
| Crosses: | Chao Phraya River |
| Locale: | Bangkok, Thailand |
| Design: | Bascule bridge, Truss bridge |
| Mainspan: | 64 m |
| Length: | 626.25 m |
| Clearance: | 7.5 m |
| Begin: | 31 August 1954 |
| Complete: | 24 March 1959 |
| Open: | 25 June 1959 |
The Krungthep Bridge (Thai: สะพานกรุงเทพ,, in Thai pronounced as /sā.pʰāːn krūŋ tʰêːp/) is a bascule bridge (drawbridge) spanning the Chao Phraya river in Bangkok, Thailand. It was the third bridge to be built across the Chao Phraya river. It was constructed by Fuji Car Manufacturing Co., Ltd, with a budget of 31,912,500 baht.
Heavy congestion on the bridge led to the construction of the 6-lane Rama III Bridge nearby.