| Referee | Games |  |  | Cards per game | |
|---|---|---|---|---|---|
| Mohammed Al-Hakim | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Menelaos Antoniou | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Kyriakos Athanasiou | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Florian Badstübner | 2 | 10 | 0 | 5.0 (5.0 / 0.0) | |
| Antoni Bandić | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Ishmael Barbara | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Marian Barbu | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Sam Barrott | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Dalibor Černý | 1 | 3 | 1 | 4.0 (3.0 / 1.0) | |
| Christian-Petru Ciochirca | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Bence Csonka | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Ante Čulina | 1 | 5 | 1 | 6.0 (5.0 / 1.0) | |
| Lothar D'hondt | 1 | 8 | 0 | 8.0 (8.0 / 0.0) | |
| Stefan Ebner | 1 | 1 | 0 | 1.0 (1.0 / 0.0) | |
| Yigal Frid | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Jarred Gillett | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Filip Glova | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| João Gonçalves | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Patryk Gryckiewicz | 1 | 7 | 0 | 7.0 (7.0 / 0.0) | |
| Robert Harvey | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Robert Hennessy | 1 | 8 | 0 | 8.0 (8.0 / 0.0) | |
| Pavle Ilić | 1 | 6 | 0 | 6.0 (6.0 / 0.0) | |
| Robert Jones | 1 | 9 | 1 | 10.0 (9.0 / 1.0) | |
| Atilla Karaoğlan | 1 | 6 | 0 | 6.0 (6.0 / 0.0) | |
| Joey Kooij | 1 | 2 | 0 | 2.0 (2.0 / 0.0) | |
| Viktor Kopievskiy | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Damian Kos | 1 | 6 | 0 | 6.0 (6.0 / 0.0) | |
| Sigurd Kringstad | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Ívar Kristjánsson | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Adam Ladebäck | 1 | 0 | 0 | 0.0 (0.0 / 0.0) | |
| Florjan Lata | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Gal Leibovitz | 1 | 2 | 0 | 2.0 (2.0 / 0.0) | |
| Allard Lindhout | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Edgars Malcevs | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Matteo Marcenaro | 1 | 2 | 0 | 2.0 (2.0 / 0.0) | |
| Henrik Nalbandyan | 1 | 7 | 2 | 9.0 (7.0 / 2.0) | |
| António Nobre | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Genc Nuza | 1 | 2 | 1 | 3.0 (2.0 / 1.0) | |
| Michal Očenáš | 1 | 3 | 1 | 4.0 (3.0 / 1.0) | |
| Radu Petrescu | 1 | 4 | 1 | 5.0 (4.0 / 1.0) | |
| Paweł Raczkowski | 1 | 4 | 1 | 5.0 (4.0 / 1.0) | |
| Mikkel Redder | 1 | 1 | 0 | 1.0 (1.0 / 0.0) | |
| Oliver Reitala | 1 | 2 | 0 | 2.0 (2.0 / 0.0) | |
| Don Robertson | 1 | 6 | 1 | 7.0 (6.0 / 1.0) | |
| Bulat Sariyev | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| David Šmajc | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Kristo Tohver | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Andris Treimanis | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Mehmet Türkmen | 1 | 1 | 0 | 1.0 (1.0 / 0.0) | |
| Christos Vergetis | 1 | 2 | 0 | 2.0 (2.0 / 0.0) | |
| Lawrence Visser | 1 | 6 | 1 | 7.0 (6.0 / 1.0) | |
| Julian Weinberger | 1 | 7 | 0 | 7.0 (7.0 / 0.0) | |
| Juxhin Xhaja | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |