Isdhoo (Dhivehi: ÃÂèÃÂðÃÂë) is one of the inhabited islands of Haddhunmathi Atoll, administrative code Laamu part of Maldives in the Indian Ocean.
This island has important ruins from the historical Maldivian Buddhist era. These ruins include one of the largest stupas so far found in the Maldives.
Loamaafaanu are ancient royal edicts written on copper plates. edicts were etched on long copper plates held together by a ring of the same metal. The were written in the curly form of the Divehi akuru or old Maldive alphabet and they are very important documents in the History of the Maldives. The oldest that have hitherto been found and preserved are from Malé, the royal capital, and from the islands of Isdà « and Dambidà « in Haddhunmathi Atoll, where there were large Buddhist monasteries. These copperplates were issued at the end of the twelfth century AD. These make it clear that the general conversion from Buddhism to Islam was ordered by the king. It is also concluded that the monasteries in Haddummati Atoll (Satu Duvu) were of great importance in the ancient Buddhist Kingdom of the Maldives.
According to the , monks from monasteries of the southern atoll of Haddhunmathi were brought to Malé and beheaded.
The island is south of the country's capital, Malé.