| Land | Dag | Måned | Navne |
 Bulgarien | 1 | maj | Ermen, Ermena, Maya, Ermelina, Ermenko, Tamara |
| Bulgarien | 2 | maj | Boriana, Boris, Borislav, Borislava, Boryana, Zhivko, Zhivka, Zhivodan |
| Bulgarien | 5 | maj | Irina, Mira, Irena, Miroslav, Miroslava |
| Bulgarien | 6 | maj | Georgi, Georgiya, Gergana, Gyuro, Galin, Galina, Galya, Ganka, Gancho, Genko, Genoveva, Gergin, Gergana, Gergina, Ginka, Zhorzh |
| Bulgarien | 9 | maj | Hristofor |
| Bulgarien | 10 | maj | Simona |
| Bulgarien | 11 | maj | Kiril, Kirila, Metodi, Kiro, Kirilka, Metodiy, Metodiya |
| Bulgarien | 12 | maj | Iskra |
| Bulgarien | 17 | maj | Aleksi |
| Bulgarien | 21 | maj | Elena, Konstantin, Kosta, Kostadin, Kostadinka, Lenko, Dicho, Lenko, Dinko, Elenko, Eli, Elin, Elka, Ilona, Kojcho, Kostadina, Kostadinko, Kuncho, Stamen, Stanimir, Stanimira, Stanka, Stoil, Stoyan, Stoian, Stoyanka, Trayko, Dinko |
| Bulgarien | 24 | maj | Kiril, Kirila, Metodi, Kiro, Kirilka, Metodiy, Metodiya |
| Bulgarien | 26 | maj | Karp, Karpo |
| Bulgarien | 28 | maj | Sotir, Spas, Spaska, Spasena, Spasuna |
| Bulgarien | 30 | maj | Emiliya, Emil, Emilia, Emilian, Emiliana |
