23 May 2021
UKRAINE - BAHRAIN
Referee: Pavel Orel (CZE)
Assistant Referee 1: Petr Bla˛ej (CZE)
Assistant Referee 2: Kamil Hįjek (CZE)
Fourth Official: Vitaliy Romanov (UKR)
27 May 2021
TURKEY - AZERBAIJAN
Referee: Genc Nuza (KOS)
Assistant Referee 1: Fatlum Berisha (KOS)
Assistant Referee 2: Bujar Selimaj (KOS)
Fourth Official: Visar Kastrati (KOS)
28 May 2021
ITALY - SAN MARINO
Referee: Trustin Farrugia Cann (MLT)
Assistant Referee 1: Luke Portelli (MLT)
Assistant Referee 2: Edward Spiteri (MLT)
Fourth Official: Antonio Giua (ITA)
30 May 2021
SWITZERLAND - USA
Referee: Harm Osmers (GER)
Assistant Referee 1: Eduard Beitinger (GER)
Assistant Referee 2: Thorsten Schiffner (GER)
Fourth Official: Lionel Tschudi (SUI)
31 May 2021
MALTA - NORTHERN IRELAND
Referee: Sebastian Gishamer (AUT)
Assistant Referee 1: Roland Riedel (AUT)
Assistant Referee 2: Andreas Witschnigg (AUT)
Fourth Official: René Eisner (AUT)
1 June 2021
SLOVAKIA - BULGARIA
Referee: Walter Altmann (AUT)
Assistant Referee 1: Roland Brandner (AUT)
Assistant Referee 2: Markus Gutschi (AUT)
Fourth Official: Felix Ouschan (AUT)
2 June 2021
ENGLAND - AUSTRIA
Referee: Lawrence Visser (BEL)
Assistant Referee 1 : Thibaud Nijssen (BEL)
Assistant Referee 2 : Rien Vanyzere (BEL)
Fourth Official : Van Driessche Bram (BEL)
GERMANY - DENMARK
Referee: Julian Weinberger (AUT)
Assistant Referee 1: Andreas Heidenreich (AUT)
Assistant Referee 2: Maximilian Kolbitsch (AUT)
Fourth Official: Dieter Muckenhammer (AUT)
NORWAY - LUXEMBOURG
Referee: Kristoffer Karlsson (SWE)
Assistant Referee 1: Robin Wilde (SWE)
Assistant Referee 2: Daniel Yng (SWE)
Fourth Official: Fredrik Klitte (SWE)
ROMANIA - GEORGIA
Referee: Anastasios Sidiropoulos (GRE)
Assistant Referee 1: Polychronis Kostaras (GRE)
Assistant Referee 2: Lazaros Dimitriadis (GRE)
Fourth Official: Andrei Florin Chivulete (ROU)
4 June 2021
ITALY - CZECH REPUBLIC
Referee: Lionel Tschudi (SUI)
Assistant Referee 1: Sladan Josipovic (SUI)
Assistant Referee 2: Matthias Sbrissa (SUI)
Fourth Official: Alessandro Prontera (ITA)
KOSOVO - MALTA
Referee: Christopher Jäger (AUT)
Assistant Referee 1: Andreas Staudinger (AUT)
Assistant Referee 2: Sara Telek (AUT)
Fourth Official: Alan Kijas (AUT)
NIGERIA - CAMEROON
Referee: Harald Lechner (AUT)
Assistant Referee 1: Santino Schreiner (AUT)
Assistant Referee 2: Maximilian Weiß (AUT)
Fourth Official: Markus Hameter (AUT)
5 June 2021
WALES - ALBANIA
Referee: Neil Doyle (IRL)
Assistant Referee 1: Wayne McDonnell (IRL)
Assistant Referee 2: Darragh Keegan (IRL)
Fourth Official: Rob Harvey (IRL)
6 June 2021
DENMARK - BOSNIA AND HERZEGOVINA
Referee: Petri Viljanen (FIN)
Assistant Referee 1: Jukka Honkanen (FIN)
Assistant Referee 2: Riku Vihreävuori (FIN)
Fourth Official: Mohammad Al-Emara (FIN)
NORWAY - GREECE
Referee: Jakob Kehlet (DEN)
Assistant Referee 1: Ole Kronlykke (DEN)
Assistant Referee 2: Jakob Mastrup (DEN)
Fourth Official: Sandi Putros (DEN)
7 June 2021
KAZAKHSTAN - MALTA
Referee: Christian-Petru Ciochirca (AUT)
Assistant Referee 1: Robert Steinacher (AUT)
Assistant Referee 2: Andreas Witschnigg (AUT)
Fourth Official: Alexander Harkam (AUT)