Tartarugalzinho (Portuguese pronunciation: [taʁtɐɾuɡawˈzĩɲu]) is a municipality located in the east of the state of Amapá in Brazil.

[2][3] The first settlement in the municipality was located on the Tartarugal Grande River, however the rapids made transport difficult, and the town was moved to a tributary.

[4] The economy is based on raising livestock, primarily cattle and buffalo, subsistence farming and fishing.

[5] The municipality contains part of the 392,469 hectares (969,810 acres) Lago Piratuba Biological Reserve, a fully protected conservation unit created in 1980.

[6] It also contains 7.64% of the 2,369,400 hectares (5,855,000 acres) Amapá State Forest, a sustainable use conservation unit established in 2006.