List of rivers of Singapore
The geographically small island nation of Singapore has few rivers of significant length or width. The longest of which, the Kallang River, is only 10 km in length. The Singapore River, perhaps the most famous in the country, is of a short length as well. However, the country's tropical climate and heavy rainfall require a very comprehensive network of natural draining systems, much of which has become a concrete system as urbanisation spread across the island.
Natural rivers
| River | Drainage area | River mouth |
| Alexandra Canal | Bukit Merah, Tanglin | No river mouth. "Alexandra Canal" is the name given to the upstream of the Singapore River. |
| Geylang Canal | Geylang | No river mouth. "Geylang Canal" is the name given to the upstream of the Geylang River. |
| Geylang River | Geylang, Kallang | Kallang Basin |
| Kallang River | Bishan, Central Water Catchment, Kallang, Toa Payoh | Kallang Basin |
| Pelton Canal | Geylang, Kallang | Kallang River |
| Rochor Canal | Kallang, Rochor | No river mouth. "Rochor Canal" is the name given to the upstream of the Rochor River. |
| Rochor River | Kallang | Kallang Basin |
| Siglap Canal | Bedok, Marine Parade | Singapore Straits |
| Singapore River | Downtown Core, Singapore River Planning Area | Marina Bay |
| Stamford Canal | Central Area | |
| Sungei Apek | Western Water Catchment | Kranji Reservoir |
| Sungei Api Api | Pasir Ris, Paya Lebar, Tampines | Serangoon Harbour |
| Sungei Bedok | Bedok, Tampines | Singapore Straits |
| Sungei Buloh Besar | Lim Chu Kang | Straits of Johor |
| Sungei Cina | Woodlands | Straits of Johor |
| Sungei Choa Chu Kang | Western Water Catchment | Poyan Reservoir |
| Sungei Jurong | Jurong East | Selat Jurong |
| Sungei Kangkar | Lim Chu Kang, Western Water Catchment | Kranji Reservoir |
| Sungei Ketapang | Tampines | Sungei Bedok |
| Sungei Khatib Bongsu | Simpang, Yishun | Straits of Johor |
| Sungei Lanchar | Boon Lay, Jurong West | Selat Jurong |
| Sungei Mandai | Sungei Kadut | Straits of Johor |
| Sungei Pandan | Bukit Batok, Clementi, Jurong East | Selat Jurong |
| Sungei Peng Siang | Choa Chu Kang, Tengah, Western Water Catchment | Kranji Reservoir |
| Sungei Pinang | Yishun | Lower Seletar Reservoir |
| Sungei Pinang | Hougang | Sungei Serangoon |
| Sungei Punggol | Hougang, Punggol, Seletar, Sengkang, Serangoon | Straits of Johor |
| Sungei Seletar | Yishun | Lower Seletar Reservoir |
| Sungei Seletar Simpang Kiri | Ang Mo Kio, Yishun | Lower Seletar Reservoir |
| Sungei Sembawang | Sembawang | Straits of Johor |
| Sungei Serangoon | Hougang, Pasir Ris, Punggol, Sengkang | Serangoon Harbour |
| Sungei Simpang | Simpang | Straits of Johor |
| Sungei Simpang Mak Wai | Lim Chu Kang, Western Water Catchment | Kranji Reservoir |
| Sungei Tampines | Pasir Ris, Tampines | Serangoon Harbour |
| Sungei Tengah | Western Water Catchment | Kranji Reservoir |
| Sungei Tho Pek Kong | Western Water Catchment | Poyan Reservoir |
| Sungei Ulu Pandan | Bukit Timah, Clementi, Queenstown | Sungei Pandan |
| Sungei Whampoa | Kallang, Novena | Kallang River |
On offshore islands
[Pulau Tekong]
- Sungei Belang
- Sungei Chek Mat Nah
- Sungei Pasir
- Sungei Permatang
- Sungei Sanyongkong
- Sungei Seminei
- Sungei Unum
[Pulau Ubin]
- Sungei Asam
- Sungei Batu Kekek
- Sungei Besar
- Sungei Jelutong
- Sungei Mamam
- Sungei Puaka
- Sungei Pulau Ubin
- Sungei Teris
- Sungei Tiga
- Sungei Wat Siam
Former rivers
Dammed and flooded
- Sungei Chik Abu - flooded and part of Lower Seletar Reservoir
- Sungei Puaka - flooded and part of Lower Seletar Reservoir
- Sungei Kranji - now the Kranji Reservoir
- Sungei Murai - now the Murai Reservoir
- Sungei Poyan - now the Poyan Reservoir
- Sungei Sarimbun - now the Sarimbun Reservoir
- Sungei Sopok - flooded and part of Lower Seletar Reservoir
- Sungei Tengeh - now the Tengeh Reservoir