| Referee | Games |  |  | Cards per game |
|---|
| Stoyan Arsov | 8 | 32 | 1 | 4.1 (4.0 / 0.1) | |
| Volen Chinkov | 13 | 65 | 5 | 5.4 (5.0 / 0.4) | |
| Georgi Davidov | 10 | 53 | 3 | 5.6 (5.3 / 0.3) | |
| Dimitar Dimitrov | 11 | 50 | 5 | 5.0 (4.5 / 0.5) | |
| Dragomir Draganov | 12 | 36 | 5 | 3.4 (3.0 / 0.4) | |
| Krasen Georgiev | 5 | 24 | 0 | 4.8 (4.8 / 0.0) | |
| Radoslav Gidzhenov | 13 | 69 | 8 | 5.9 (5.3 / 0.6) | |
| Georgi Ginchev | 10 | 49 | 3 | 5.2 (4.9 / 0.3) | |
| Mariyan Grebencharski | 12 | 45 | 1 | 3.9 (3.8 / 0.1) | |
| Hristiyana Guteva | 3 | 14 | 0 | 4.7 (4.7 / 0.0) | |
| Georgi Kabakov | 14 | 85 | 6 | 6.5 (6.1 / 0.4) | |
| Todor Kirov | 8 | 26 | 0 | 3.3 (3.3 / 0.0) | |
| Kristiyan Kolev | 10 | 44 | 2 | 4.6 (4.4 / 0.2) | |
| Lyuboslav Lyubomirov | 10 | 43 | 2 | 4.5 (4.3 / 0.2) | |
| Martin Markov | 6 | 29 | 1 | 5.0 (4.8 / 0.2) | |
| Vasil Minev | 10 | 39 | 3 | 4.2 (3.9 / 0.3) | |
| Ventislav Mitrev | 11 | 59 | 2 | 5.6 (5.4 / 0.2) | |
| Mihael Pavlov | 5 | 25 | 1 | 5.2 (5.0 / 0.2) | |
| Gero Piskov | 6 | 31 | 3 | 5.7 (5.2 / 0.5) | |
| Nikola Popov | 14 | 69 | 3 | 5.1 (4.9 / 0.2) | |
| Denislav Stalev | 4 | 21 | 4 | 6.3 (5.3 / 1.0) | |
| Georgi Stoyanov | 7 | 24 | 2 | 3.7 (3.4 / 0.3) | |
| Stanimir Trenchev | 7 | 28 | 3 | 4.4 (4.0 / 0.4) | |
| Martin Velikov | 9 | 29 | 2 | 3.4 (3.2 / 0.2) | |
| Valentin Zhelezov | 10 | 47 | 2 | 4.9 (4.7 / 0.2) | |
