Benjamin Constant is a municipality located in the Brazilian state of Amazonas.

In 1988 the town was the scene of the murder of 14 Ticunas in a dispute between them and logging interests.

[3] The town was named after the Brazilian revolutionary Benjamin Constant (1836–1891).

The town is located by the confluence of the Javary River and the Amazon, close to the border with Peru.

However, there are no customs or immigration facilities in Benjamin Constant, and entry and exit formalities take place at Tabatinga on the opposite bank of the Amazon.