| Naf River | |
|---|---|
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| Location | |
| Country | Bangladesh and Myanmar |
| Division/State | Chittagong Division(Bangladesh) Rakhine State(Myanmar) |
| Districts | Cox's Bazar District (Bangladesh) Maungdaw District(Myanmar) |
| City | Teknaf(Bangladesh) Maungdaw(Myanmar) |
| Physical characteristics | |
| Mouth | |
• location | Bay of Bengal |
• coordinates | 20°43′N 92°22′E / 20.717°N 92.367°E |
| Depth | |
| • average | 128 feet (39 m) |
| • maximum | 400 feet (120 m) |

The Naf River (Bengali: নাফ নদী Naf Nodi IPA: [naf nod̪i]; Burmese: နတ်မြစ် [naʔ mjɪʔ]; Rakhine: နတ်မြစ် [nɛ́ mràɪʔ]) is an international river marking part of the border of southeastern Bangladesh and northwestern Myanmar.
The Naf's average depth is 128 feet (39 m), and maximum depth is 400 feet (120 m). Its width varies from 1.61 km to 3.22 km.
It flows into the Bay of Bengal in the Indian Ocean, between the Bangladeshi Cox's Bazar District of the Chittagong Division, and the Burmese Rakhine State.
Historically, Shapuree Island, located at the mouth of the river, has played an important role territorially. It is considered one of the immediate causes for the first Anglo-Burmese War. St. Martin's Island is also at the river's mouth.
Regular incidents in which fishermen and Burmese refugees are shot at by the Tatmadaw (Myanmar Armed Forces), and/or refugees fleeing Myanmar are escorted back to Myanmar by Bangladeshi troops have occurred on the Naf River.
These include but are not limited to the following:
Since December 8, 2024, when the Arakan Army took control of Maungdaw and the Myanmar side of the border, reports indicate that at least 399 fishermen have been captured by Arakan Army. As of mid-May 2026, around 165 reportedly remains in Arakan Army custody. According to the Daily Star, Bangladeshi and Rohingya fishermen have been held in camps under difficult conditions. Families of detainees has reported requested payments of often between Tk 100,000 and Tk 150,000 per person through mobile financial services in exchange for their release.