Avarua is a town and district in the north of the island of Rarotonga, and is the national capital of the Cook Islands.

Rarotonga is the largest and most populous of the Cook Islands. The island is volcanic, with an area of 67.39 km2 (26.02 sq mi), and is home to almost 75% of the country's population, with 10,898 of a total population of 15,040. The Cook Islands' Parliament buildings and international airport are on Rarotonga. Rarotonga is a very popular tourist destination with many resorts, hotels and motels. The chief town, Avarua, on the north coast, is the capital of the Cook Islands.