Tanintharyi Region (, ;
Mon: or ; formerly
Tenasserim Division and subsequently
Tanintharyi Division, is an administrative
region of
Myanmar, covering the long narrow southern part of the country on the
Kra Isthmus. It borders the
Andaman Sea to the west and the
Tenasserim Hills, beyond which lies
Thailand, to the east. To the north is the
Mon State. There are many islands off the coast, the large
Mergui Archipelago in the southern and central coastal areas and the smaller
Moscos Islands off the northern shores. The capital of the division is
Dawei (Tavoy). Other important cities are
Myeik (Mergui) and
Kawthaung. The division covers an area of 43,344.9 km², and had a population of 1,406,434 at the 2014 Census.