| Date of issue |
Description |
| 11.02.2021 |
120th birth anniversary of Patriarch Kiril Bulgarski - m/s |
| 12.02.2021 |
Chinese New Year, Year of the White Metal Ox - perforated s/s |
| 12.02.2021 |
Chinese New Year, Year of the White Metal Ox - 2 imperforated s/s |
| 16.04.2021 |
100th birth anniversary of John Glenn and 50 years since Apollo 14 - s/s |
| 16.04.2021 |
550th birth anniversary of Albrecht Dürer - s/s |
| 16.04.2021 |
150th birth anniversary of Dame Gruev - 1 v. |
| 26.04.2021 |
100 years since the announcement of Varna as a resort town - 1 v. |
| 12.05.2021 |
200th birth anniversary of Georgi Stoykov Rakovski - 1 v. |
| 19.05.2021 |
50 years Institute of Air Transport - 1 v. |
| 31.05.2021 |
Europa 2021: Endangered national wildlife - 2 m/s |
| 31.05.2021 |
Europa 2021: Endangered national wildlife - s/s |
| 31.05.2021 |
Europa 2021: Endangered national wildlife - booklet |
| 11.06.2021 |
60 years since the flight of the first man in space Yuri Gagarin - 2 s/s |
| 25.06.2021 |
100 years of the National Academy of Music "Prof. Pancho Vladigerov" - 1 v. |
| 07.07.2021 |
Cultural and historical heritage, 800 years Ivanovo rock monastery - 2 v. |
| 09.07.2021 |
Three Seas Initiative - s/s |
| 20.08.2021 |
30 years Federation of the cultural and educational societies of the Karakachans in Bulgaria - s/s |
| 30.08.2021 |
90 years since the establishment of diplomatic relations between Bulgaria and Argentina - m/s |
| 08.09.2021 |
140 years since the establishment of the Higher Naval School "Nikola Yonkov Vaptsarov" - 1 v. |
| 16.09.2021 |
European Year of Railway Transport, 100 years of the Rhodope narrow-gauge railway - s/s |
| 21.09.2021 |
30 years of New Bulgarian University - 1 v. |
| 23.09.2021 |
Great explorers, Umberto Nobile - 2 s/s |
| 23.09.2021 |
400th birth anniversary of Jean de La Fontaine - s/s |
| 25.09.2021 |
160th birth anniversary of General Ivan Kolev - s/s |
| 08.10.2021 |
70 years since the establishment of the State Archives in Bulgaria - 1 v. |
| 14.10.2021 |
100 years of the Bulgarian Youth Red Cross - s/s |
| 14.10.2021 |
70 years since the founding of Graf Ignatievo Air Base - s/s |
| 25.10.2021 |
200th birth anniversary of Dostoevsky - 1 v. |
| 01.11.2021 |
50 years of Shumen University - m/s |
| 15.11.2021 |
Christmas 2021 - 1 v. |
| 24.11.2021 |
450th birth anniversary of Caravaggio - s/s |
| 24.11.2021 |
Flora: Predatory Plants - s/s |
| 30.11.2021 |
130 years since the establishment of the Military Medical Academy - 1 v. |
| 01.12.2021 |
25 years since the resumption of the Supreme Administrative Court - 1 v. |
| 13.12.2021 |
Bulcollecto, Chinese New Year 2022, the Year of the Tiger - 2 m/s |
| 13.12.2021 |
125 years of the National Academy of Arts - 1 v. with a tab |
| 14.12.2021 |
40 years of the National Donation Fund "13 Centuries of Bulgaria" - 1 v. |
| 16.12.2021 |
125th birth anniversaries of Acad. Nikola Obreshkov and Acad. Georgi Nadjakov - 2 v. |
| 17.12.2021 |
30 years since the founding of the Atlantic Club in Bulgaria - 2 s/s |
| 30.12.2021 |
120 years since the launch of the first tram in
Sofia - s/s |
| 30.12.2021 |
Fauna: Game Birds - 4
m/s |
| 30.12.2021 |
Fauna: Game Birds - 2
s/s |
| 30.12.2021 |
Birth anniversaries of Bulgarian actresses and
composers - 2 v. |
