Porto Trombetas Airport (IATA: TMT, ICAO: SBTB) is the airport serving the district of Porto Trombetas in Oriximiná, Brazil.

It is operated by the mining company Mineração Rio do Norte S/A.

The airport is located 4 km (2 mi) from downtown Porto Trombetas and 70 km (43 mi) from downtown Oriximiná.