9 May 2015
Croatia – Austria
Referee: Dumitru Muntean (MDA, photo)
Assistant Referee 1: Romans Platonovs (LVA)
Assistant Referee 2: Gareth Jones (WAL)
Fourth Official: Danilo Grujić (SRB)
Referee Observer: Uno Tutk (EST)
Bulgaria – Spain
Referee: Marius Avram (ROU)
Assistant Referee 1: Erik Weiss (SVK)
Assistant Referee 2: Aleh Maslianka (BLR)
Fourth Official: Alan Sant (MLT)
Referee Observer: Marc Batta (FRA)
Czech Republic – Belgium
Referee: Mads-Kristoffer Kristoffersen (DEN)
Assistant Referee 1: Namik Huseynov (AZE)
Assistant Referee 2: Ville Koskiniemi (FIN)
Fourth Official: Tsvetan Krastev (BUL)
Referee Observer: Stefan Ormandjiev (BUL)
Slovenia – Germany
Referee: Adrien Jaccottet (SUI)
Assistant Referee 1: Dovydas Sužiedėlis (LTU)
Assistant Referee 2: Sten Klaasen (EST)
Fourth Official: Ivaylo Stoyanov (BUL)
Referee Observer: Jozef Marko (SVK)
10 May 2015
Russia – France
Referee: Danilo Grujić (SRB)
Assistant Referee 1: Ville Koskiniemi (FIN)
Assistant Referee 2: Romans Platonovs (LVA)
Fourth Official: Ivaylo Stoyanov (BUL)
Referee Observer: Jozef Marko (SVK)
Ireland – Italy
Referee: Roi Reinshreiber (ISR)
Assistant Referee 1: Sten Klaasen (EST)
Assistant Referee 2: Aleh Maslianka (BLR)
Fourth Official: Georgi Kabakov (BUL)
Referee Observer: Marc Batta (FRA)
Greece – Scotland
Referee: Paweł Raczkowski (POL)
Assistant Referee 1: Rejdi Avdo (ALB)
Assistant Referee 2: Erik Arevshatyan (ARM)
Fourth Official: Tsvetan Krastev (BUL)
Referee Observer: Stefan Ormandjiev (BUL)
Netherlands – England
Referee: Erik Lambrechts (BEL)
Assistant Referee 1: Nuno Pereira (POR)
Assistant Referee 2: Dovydas Sužiedėlis (LTU)
Fourth Official: Nikola Popov (BUL)
Referee Observer: Uno Tutk (EST)