Željko
Željko, sometimes written Zeljko, is a South Slavic masculine given name.
In Croatia, the name Željko was among the most common masculine given names in the decades between 1950 and 1979, and was the most common name in the 1960s.
Notable people with the name include:
- Željko Ačkar, Croatian footballer
- Željko Adžić, Croatian footballer
- Zeljko Babic, Australian association football player
- Željko Babić, Croatian handball player and coach
- Željko Bajčeta, Montenegrin footballer
- Željko Bebek, Bosnian singer, lead vocalist of Bijelo dugme from 1974 to 1984
- Željko Bilecki, Canadian soccer player
- Željko Blagojević, Bosnian Serb long-distance runner
- Željko Božić, Serbian stuntman and actor
- Željko Bogut, Bosnian chess player and two time national champion
- Željko Brkić, Serbian football goalkeeper
- Željko Brestovački, Serbian politician
- Željko Brodarić, Yugoslavian rock musician
- Željko Bujas, Croatian linguist, scholar and lexicographer
- Željko Burić, Croatian politician
- Željko Buvač, Bosnian Serb footballer and manager
- Željko Čajkovski, Croatian football player and coach
- Željko Cicović, Serbian football goalkeeper
- Željko Cupan, Croatian footballer
- Željko Đokić, Serbian footballer
- Željko Đurđić, Serbian handball goalkeeper
- Željko Dimitrijević, Serbian Paralympic athlete
- Željko Dimitrov, Serbian footballer
- Željko Fajfrić, Serbian lawyer, professor and historian
- Željko Filipović, Slovenian footballer
- Željko Franulović, Croatian tennis player
- Željko Gavrić, Serbian footballer
- Željko Gavrilović, Serbian footballer
- Željko Glasnović, Croatian general and politician
- Željko Ivanek, American actor of Slovenian-Croatian origin
- Željko Ivanković, Croatian writer from Bosnia and Herzegovina
- Željko Ivanović, Montenegrin journalist, producer and human rights activist
- Željko Ivezić, Croatian American astrophysicist
- Željko Janjetović, Bosnian diplomat, Ambassador Extraordinary and Plenipotentiary of Bosnia and Herzegovina to the Russian Federation
- Željko Janović, Montenegrin footballer
- Željko Jerkić, Bosnian diplomat
- Željko Jerkov, Croatian basketballer
- Željko Jerman, Croatian photographer
- Željko Joksimović, popular Serbian singer, composer, songwriter and producer
- Željko Jovanović (disambiguation), multiple people
- Željko Kalac, Australian goalkeeper currently playing for Greek club Kavala
- Željko Kalajdžić, Serbian professional football midfielder
- Željko Kaluđerović, Montenegrin footballer
- Željko Karaula, Croatian historian and author
- Željko Kerum, Croatian entrepreneur and politician
- Željko Kipke, Croatian artist
- Željko Kljajević, Montenegrin footballer
- Željko Knapić, Croatian sprinter
- Željko Komšić, Bosnian-Herzegovinian politician
- Željko Kopanja, Bosnian Serb newspaper editor and director of Nezavisne Novine
- Željko Kopić, Croatian football coach
- Željko Kosanović, Croatian basketballer and handball player
- Željko Kovačević, Serbian footballer
- Željko Krajan, Croatian tennis player and coach
- Željko Kuzmić, Serbian football goalkeeper
- Željko Lelek, Bosnian Serb indicted for mass rape crimes in Višegrad during the Bosnian War
- Željko Loparić, Croatian philosopher, historian of the philosophy and university teacher
- Željko Ljubenović, Serbian football midfielder and coach
- , Croatian cartoonist, animator and illustrator
- Željko Lučić, Serbian operatic baritone
- Željko Lukajić, Serbian basketball coach
- Željko Majić, Bosnian bishop
- Željko Malčić, Croatian footballer
- Željko Malnar, writer and TV presenter
- Željko Marasović, Croatian American composer of classical and film music
- Željko Markov, Serbian footballer and manager
- Željko Matuš, Croatian footballer
- Željko Mavrović, Croatian boxer and entrepreneur
- Željko Mejakić, Bosnian Serb war criminal
- Željko Mijač, Croatian football player and manager
- Željko Milanović, Croatian handball player and coach
- Željko Milinovič, Slovenian footballer
- Željko Milošević, Serbian footballer
- Željko Milović, Bosnian writer, poet and journalist
- Željko Mitrakovič, Slovenian football midfielder
- Željko Mrvaljević, Montenegrin football defender
- Željko Musa, Croatian handball player
- Željko Nimš, Croatian handball player
- Željko Obradović, Serbian basketball player and coach
- Željko Ožegović, Serbian politician
- Željko Pahek, Croatian and Serbian comics creator and illustrator
- Željko Pakasin, Croatian footballer and manager
- Željko Panić, Bosnian swimmer
- Željko Pavličević, Croatian basketballer and coach
- Željko Pavlović, Croatian football goalkeeper
- Željko Perović, Montenegrin footballer
- Željko Perušić, Croatian footballer
- Željko Pervan, Croatian comedian
- Željko Petrović, Montenegro footballer and technical coach
- Željko Petrović, Bosnian long-distance runner
- Željko Polak, Bosnian Serb football player
- Željko Poljak, Croatian basketballer and coach
- Zeljko Radovic, Austrian football player
- Zeljko Ranogajec, professional gambler from Australia
- Željko Ražnatović, better known as Arkan, Serbian career criminal and later a paramilitary leader
- Željko Rebrača, Serbian basketball player
- Željko Reiner, Croatian physician, politician and professor
- Željko Rodić, Croatian footballer
- Željko Rohatinski, Croatian economist and former Governor of the Croatian National Bank
- Željko Samardžić, Bosnian Serb pop-folk singer
- Željko Šašić, Serbian pop-folk singer
- Željko Savić, Bosnian Serb footballer
- Željko Senečić, Croatian film and television production designer, film director and screenwriter
- Željko Simović, Serbian footballer and manager
- Željko Sošić, Montenegrin director
- Željko Sopić, Croatian football midfielder
- Željko Stinčić, Croatian footballer
- Željko Šturanović, Montenegro politician
- Zeljko Susa, Australian footballer
- Željko Sušec, Serbian politician
- Željko Tadić, Montenegrin footballer
- Željko Tanasković, Serbian volleyball player
- Željko Tomac, Croatian handball player
- Željko Tomić, Croatian footballer
- Željko Topalović, Serbian hotelier and basketballer
- Željko Topić, Croatian bureaucrat
- Željko Trajković, Serbian wrestler
- Željko Turk, Croatian politician
- Željko Vadić, Croatian sport shooter
- Željko Vasiljević, Serbian politician and veteran representative
- Željko Veselinović, Serbian union leader and politician
- Željko Vidović, Serbian politician
- Željko Vincek, Croatian sprinter who specializes in the 400 metres
- Željko Vuković (footballer, born 1962), Croatian-born Austrian footballer
- Željko Vuković (footballer, born 1963), Montenegrin footballer
- Željko Zagorac, professional basketball player
- Željko Zečević, Serbian basketball coach
- Željko Župetić, Croatian footballer