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

The island is 287.2 km (178 mi; 155 nmi) north of the country's capital, Malé.

[2] The reefs around the island is home to manta rays, reef sharks, sea turtles and an impressive amount and variety of fish.

Hirimaradhoo Thila is the best-known spot for observing Rhinobatids or guitar sharks.

Hirimaradhoo was involved in the alleged 2008 election fraud in the Maldives where 50 votes were forged.