The announcement was made three weeks earlier than required by FIFA.
The 23-man squad announced on Friday is made up of three goalkeepers, eight defenders, eight midfielders and four strikers.
Iceland included Gylfi Sigurdsson in their squad for the World Cup, despite the Everton playmaker being injured.
They will face Nigeria in a Group D clash on June 22 in Volgograd after their first game against Argentina on June 16.
Iceland’s final 23-man World Cup squad:
Hannes Halldorsson (Randers), Runar Runarsson (Nordsjaelland), Frederik Schram (Roskilde); Kari Arnason (Aberdeen), Holmar Eyjolfsson (Levski Sofia), Rurik Gislason (Sandhausen), Sverrir Ingason (Rostov), Hordur Magnusson (Bristol City), Birkir Saevarsson (Valur), Ragnar Sigurdsson (Rostov), Ari Skulason (Lokeren); Birkir Bjarnason (Aston Villa), Samuel Fridjonsson (Valerenga), Johann Gudmundsson (Burnley), Aron Gunnarsson (Cardiff City), Emil Hallfredsson (Udinese), Gylfi Sigurdsson (Everton), Olafur Skulason (Karabukspor), Arnor Traustason (Malmo); Jon Bodvarsson (Reading), Alfred Finnbogason (Augsburg), Albert Gudmundsson (PSV), Bjorn Sigurdarson (Rostov).
Reserve list: Andri Bjarnason (Helsingborgs), Elmar Bjarnason (Elazigspor), Kjartan Finnbogason (Horbens), Jon Fjoluson (Norrkoping), Hjortur Hermannsson (Brondby), Ingvar Jonsson (Sandefjord), Vidar Kjartansson (Maccabi Tel Aviv), Ogmundur Kristinsson (Excelsior), Elias Omarsson (Gothenburg), Kolbeinn Sigthorsson (Nantes), Runar Sigurjonsson (St Gallen, on loan from Grasshoppers), Arnor Smarason (Hammarby). THINK YOUR FRIEND WOULD BE INTRESTED? SHARE THIS STORY USING ANY OF THE SHARE BUTTON BELOW ⬇ PLACE YOUR TEXT ADVERT BELOW:>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>