Kenya, Mozambique, Somalia, Tanzania [United Republic of].
Extreme southern Somalia (lower R Jubba), coastal Kenya (extending inland along lower R Tana and to Rabai and Shimba), eastern Tanzania (coastal region, inland to eastern Usambaras, eastern Ulugurus and Udzungwas) and north-eastern Mozambique.
 
Population
Estimated population is unknown (2010).
Fischer's Greenbul (Phyllastrephus fischeri) [XC154774]
by Simon Carter from Arabuko-Sokoke Forest, Kenya (song)
Fischer's Greenbul (Phyllastrephus fischeri) [XC456814]
by Frank Lambert from Arabuko-Sokoke Forest, Kenya (call)
Subspecies
No subspecies.
Forms a superspecies with Cabanis's Greenbul (Phyllastrephus cabanisi) and has in the past been treated as conspecific, but differs in morphology (plumage, eye colour, bill structure) and voice, and the two recently found to occur together in Tanzania (parts of the Udzungwas). Has also been suggested that both form a superspecies with Leaf-love (Pyrrhurus scandens) (which sometimes included in present genus), but relationship seems remote. Biometric data for present species indicate a north-south cline of increasing size and weight.