Albania (B), Bosnia and Herzegovina (B), Botswana, Bulgaria (B), Croatia (Local Name: Hrvatska) (B), Cyprus, Czech Republic, Egypt, Ethiopia, Greece (B) (P), Israel, Jordan (P), Kenya, Kuwait, Lebanon (B), Macedonia [The Former Yugoslav Republic of] (B), Malawi, Montenegro (B), Serbia (B), South Africa, Sudan, Syrian Arab Republic (B), Tanzania [United Republic of], Turkey (B), Yemen, Zambia, Zimbabwe.
Vagrant to Algeria, Cameroon, Djibouti, Eritrea, Germany, Italy, Niger, Nigeria, Oman, Romania, Saudi Arabia, Somalia, Spain, Ukraine.
Breeds, mostly near coasts, from Croatia south to Greece and from extreme south-eastern Romania and eastern Bulgaria south to western and southern Turkey, also northern Israel. Non-breeding eastern and southern Africa.
 
Population
Estimated population is 33,000 - 69,000 (2010).
Olive-tree Warbler (Hippolais) [XC819380]
by Rick Nuttall from Kuilput Farm , SE of De Brug, Kopanong Local Municipality (near Bloukop), Xhariep District Municipality, Free State, South Africa (song)
Olive-tree Warbler (Hippolais olivetorum) [XC743518]
by Stephan Risch from Primorsko North, Bulgaria (song)
Subspecies
No subspecies.
Sister-species of Upcher's Warbler (Hippolais languida), the two being fairly close to the sister-species pair formed by Melodious Warbler (Hippolais polyglotta) and Icterine Warbler (Hippolais icterina).