Kumundhoo (Dhivehi: ކުމުންދޫ) is one of the inhabited islands of Haa Dhaalu Atoll administrative division and geographically part of Thiladhummathi Atoll in the north of the Maldives.

An archaeological site from the pre-Islamic Buddhist era is found on the island.

It is in the form of a stone circle known locally as Us-Kunna, possibly the remains of an ancient buddhist stupa.

Demonstrations in Kumundhoo in 2006 was among a long line of demonstrations against the government injustice and negligence of the outer islands by the government.

The island is 270.03 km (168 mi; 146 nmi) north of the country's capital, Malé.