Eastern Ecuador, north-eastern Peru, south-eastern Colombia, extreme southern Venezuela (southern Amazonas), and upper and middle Amazonian Brazil (east to lower R Negro and, south of Amazon, to lower and middle R Tapajós and R Curuá).
 
Population
Estimated population is unknown (2010).
Black-necked Red Cotinga (Phoenicircus nigricollis) [XC365062]
by Dante Buzzetti from Finca los pe\u00f1as,Puerto Legu\u00edzamo, Putumayo, Colombia (call)
Black-necked Red Cotinga (Phoenicircus nigricollis) [XC270907]
by Caio Brito from Explornapo, Loreto, Peru (call)
Subspecies
Forms a superspecies with Guianan Red Cotinga (Phoenicircus carnifex) and could perhaps be considered conspecific.