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 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.
Teknaf (Bengali: টেকনাফ Ṭeknaf) is an upazila of Cox's Bazar District in the Division of Chittagong, Bangladesh. It forms the southernmost point in mainland Bangladesh (St. Martin's Island is the southernmost point overall). The name of the region comes from the Naf River which forms the eastern boundary of the upazila. It shares a border with Myanmar, opposite the town of Maungdaw.
A transboundary river is a river that crosses at least one political border, either a border within a state or an international boundary. Bangladesh has the highest number of these rivers, with at least 58 major rivers that enter the country from the Republic of India, including two of the world's largest rivers, the Brahmaputra and the Ganges. The Naf River is the only river that flows via Bangladesh into Myanmar.
The hydrologic and political effects of rivers that cross significant boundaries are enormous. Rivers have positive effects in that they carry a significant amount of sediment, which aids in building land in estuarine regions. However, this sediment raises the height of riverbeds, thereby causing flooding. International conventions governing water sharing have led to complex political disputes.