| Land | Tag | Monat | Namen |
 Kroatien | 29 | Januar | Vilana, Valerije, Konstancije |
 Italien | 30 | Januar | Costanzo |
 Lettland | 17 | Februar | Auce, Donats, Konstance |
 Polen | 17 | Februar | Donat, Donata, Franciszek, Izydor, Julian, Konstanty, Łukasz, Niegomir, Sylwin, Zbigniew, Zbyszko |
 Spanien | 17 | Februar | Constanza, Rómulo, Alexis |
| Polen | 18 | Februar | Albert, Alberta, Albertyna, Fryda, Konstancja, Krystiana, Maksym, Sawa, Sylwan, Sylwana, Symeon, Więcesława, Zula, Zuzanna |
 Österreich | 18 | Februar | Constanze, Simon, Simone |
| Polen | 25 | Februar | Bolebor, Cezary, Konstancjusz, Maciej, Małgorzata, Modest, Nicefor |
| Lettland | 11 | Marsch | Agita, Konstantins |
 Litauen | 11 | Marsch | Gedimtas, Konstantinas, Vijole |
| Polen | 11 | Marsch | Benedykt, Drogosława, Edwin, Kandyd, Konstanty, Konstantyn, Prokop, Rozyna, Sofroniusz |
 USA | 11 | Marsch | Alberta, Albertina, Angus, Connie, Constance, Constantine, Consuela, Consuelo, Elberta, Ramiro |
| Italien | 12 | Marsch | Costantino, Rosina |
 Frankreich | 11 | April | Stanislas |
| Italien | 11 | April | Stanislao |
| Kroatien | 11 | April | Stanislav, Stana, Radmila |
| Spanien | 11 | April | Gema, Oria, Estanislao |
| Österreich | 11 | April | Hildebrand, Stanislaus |
 Bulgarien | 12 | April | Vencislav, Vencislava, Violeta, Varban, Girgin, Girgina, Dilyan, Dilyana, Zdravka, Zdravko, Latinka, Lilyana, Margarita, Nevena, Roza, Rosen, Rosica, Trendafil, Trendafilka, Tsvetan, Tsveta, Tsvetanka, Tsviatko, Tseno, Stanislav, Stanislava |
 Czech | 7 | Mai | Stanislav |
| Litauen | 7 | Mai | Butautas, Danute, Rimte, Stanislovas, Stasys |
 Dänemark | 8 | Mai | Stanislaus |
| Lettland | 8 | Mai | Aiga, Ceronis, Inita, Stanislavs, Stefanija |
| Polen | 8 | Mai | Dezyderia, Ilza, Marek, Michał, Piotr, Stanisław |
| USA | 19 | Mai | Dumont, Duncan, Dunstan, Indigo, Ivar, Ives, Wright, Yves |
| Bulgarien | 21 | Mai | 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 |
 Estland | 21 | Mai | Konstantin, Kostel, Tiino, Kindel |
 Finnland | 21 | Mai | Konsta, Kosti, Konstantin |
| Frankreich | 21 | Mai | Constantin |
 Griechenland | 21 | Mai | Konstantinos, Kostas, Tina, Dina, Eleni, Helen |
 Schweden | 21 | Mai | Conny, Konstantin |
| Spanien | 21 | Mai | Constantino, Virginia, Giselle, Valente |
 Ukraine | 21 | Mai | Constantine, Constance, Helen |
 Ungarn | 21 | Mai | Konstantin |
| Österreich | 21 | Mai | Christoph, Constantin, Josef, Julio |
| Polen | 3 | Juni | Cecyliusz, Ferdynand, Klotylda, Konstantyn, Laurencjusz, Laurentyn, Laurentyna, Leszek, Paula, Tamara, Wawrzyniec |
| Czech | 9 | Juni | Stanislava |
 Slowakei | 9 | Juni | Stanislava |
| Polen | 29 | Juli | Beatrice, Beatrycze, Beatryks, Cierpisław, Faustyn, Konstantyn, Lucylla, Maria, Marta, Olaf, Serafina, Urban |
| Polen | 5 | August | Cyriak, Emil, Karolin, Maria, Nonna, Oswald, Oswalda, Stanisława |
| Polen | 26 | August | Dobroniega, Joanna, Konstanty, Maksym, Maria, Wiktorian, Zefir, Zefiryn, Zefiryna |
| Litauen | 5 | September | Dingaile, Erdenis, Justina, Stanislova, Stase |
| Litauen | 10 | September | Girminte, Konstancija, Koste, Mikalojus, Tautgirdas |
| Bulgarien | 14 | September | Krustan, Krustina, Krustyo, Krastan, Krastina, Krastyo, Kancho, Stavri, Krastyu, Krastena |
| Dänemark | 19 | September | Constantia |
 Norwegen | 19 | September | Connie, Konstanse |
| Polen | 19 | September | Alfons, Alfonsyna, January, Konstancja, Sydonia, Teodor, Więcemir |
| Slowakei | 19 | September | Konštantín |
| Polen | 2 | Oktober | Dionizy, Leodegar, Stanimir, Teofil, Trofim |
| Polen | 5 | Oktober | Apolinary, Częstogniew, Donat, Donata, Faust, Fides, Flawia, Igor, Justyn, Konstancjusz, Konstans, Placyd |
| Kroatien | 13 | November | Stanislav Kostka, Brcko b., Stanko |
| Polen | 13 | November | Arkadiusz, Arkady, Brykcjusz, Eugeniusz, Jan, Mikołaj, Stanisław, Walentyn |
| Slowakei | 13 | November | Stanislav |
| Österreich | 13 | November | Eugen, Livia, Stanislaus |
| Polen | 30 | November | Andrzej, Justyna, Konstanty, Maura, Zbysława |
| Bulgarien | 5 | Dezember | Elisaveta, Sava, Savka, Svetoslav, Svetoslava, Slavi, Slavcho, Sabi, Savina, Stanislav |
| USA | 22 | Dezember | Asta, Astrid, Trista, Tristan, Tristen, Tristin, Triston |
| Bulgarien | 27 | Dezember | Venci, Vencislav, Vencislava, Zapryan, Sonya, Stamen, Stanimir, Stanka, Stefan, Stefana, Stefaniya, Stefka, Stoil, Stoimen, Stoichko, Stojko, Stoyan, Stoyanka, Tanya, Tsanka, Tsanko, Tsonka, Tsonyu |
