The rusty-margined flycatcher (Myiozetetes cayanensis) is a species of bird in the Tyrannidae family, the tyrant flycatchers.
It is found in northern and central South America in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela; also eastern Panama. Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest.