Locally at base of eastern slope of Andes in central and eastern Peru (Junín, Huánuco, Pasco, Ayacucho, eastern Puno) and northern Bolivia (La Paz, Cochabamba, western Santa Cruz).
 
Population
Estimated population is unknown (2010).
White-bellied Pygmy Tyrant (Myiornis albiventris) [XC764821]
by Guy Kirwan from Quebrada Upaquihua (Tarapoto) San Martin, Peru (song)
White-bellied Pygmy Tyrant (Myiornis albiventris) [XC702591]
by GABRIEL LEITE from Reserva Maycu, Nangaritza, Provincia de Zamora Chinchipe, Ecuador (call, song)
Subspecies
No subspecies.
Forms a superspecies with Eared Pygmy-tyrant (Myiornis auricularis), and sometimes considered conspecific.