Santa Maria do Boiaçu Airport is a small general aviation airstrip located near the community of Santa Maria do Boiaçu in the municipality of Rorainópolis, in the state of Roraima, Brazil. It serves as a basic access point for a remote Amazonian area where road infrastructure is limited or seasonally impassable. The airport operates primarily to support local communities, missionaries, and light cargo operations in a region characterized by dense rainforest and sparse population. It lacks the infrastructure of larger regional airports and handles only small propeller-driven aircraft.