Aparri, officially the Municipality of Aparri, is a 1st class municipality in the province of Cagayan, Philippines. According to the 2015 census, it has a population of 65,649 people.
It sits at the mouth of the Cagayan River, the longest river in the Philippines, about 55 miles north of Tuguegarao, the provincial capital.
Aparri has an approximate income of ₱90 million. The valley has been one of the largest tobacco-producing sections in the Philippines, and the town has a considerable coastwise trade.
It has a meteorological station located in Barangay Punta where the Cagayan River meets the Babuyan Channel.
It also administers Fuga Island, which is part of the Babuyan Group and is much closer to Claveria. In the near future, it is become the next city in the province of Cagayan.