Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, Venezuela.
Introduced to USA (B).
Eastern Panama and Colombia southern and east through Ecuador, eastern Peru and northern Bolivia to central and north-eastern Brazil, Venezuela and the Guianas.
 
Population
Estimated population is unknown (2010).
Chestnut-fronted Macaw (Ara severus) [XC437960]
by Rosendo Fraga from Zanj\u00f3n del Burro, Cali, Valle del Cauca, Colombia (call)
Chestnut-fronted Macaw (Ara severus) [XC827253]
by Juan Freile from Play\u00f3n Rio Orteguaza - Vereda Canelos, Colombia (call)
Subspecies
Usually treated as comprising two subspecies, with western populations (castaneifrons) being marginally larger, but differences likely to be clinal.