| Country | Day | Month | Names |
 Finland | 7 | January | Aku, Aukusti, August |
 Sweden | 7 | January | August, Augusta |
 Poland | 13 | January | Bogumił, Bogusąd, Bogusława, Godfryd, Gotfryd, Leoncjusz, Melania, Weronika |
 Hungary | 16 | January | Gusztáv |
| Poland | 28 | January | Agnieszka, Augustyn, Flawian, Ildefons, Julian, Karol, Leonidas, Piotr, Radomir, Roger, Waleriusz |
 Lithuania | 4 | February | Andrius, Arvile, Gustas, Joana, Vydmantas |
| Poland | 24 | February | Bogurad, Bogusz, Boguta, Bohusz, Lucjusz, Maciej, Piotr |
 France | 29 | February | Auguste |
 Austria | 10 | March | Emil, John, Gustav |
 USA | 11 | March | Alberta, Albertina, Angus, Connie, Constance, Constantine, Consuela, Consuelo, Elberta, Ramiro |
 Latvia | 19 | March | Daris, Inga, Ingrida, Ingus, Jazeps |
| Poland | 20 | March | Aleksander, Aleksandra, Ambroży, Anatol, Bogusław, Cyriaka, Eufemia, Klaudia, Patrycjusz, Ruprecht, Wasyl, Wincenty |
| Poland | 22 | March | Bazylissa, Bogusław, Godzisław, Katarzyna, Kazimierz, Paweł |
| Latvia | 27 | March | Audra, Gustavs, Gusts, Talrits |
| Hungary | 29 | March | Auguszta |
| USA | 1 | April | April, Arden, Argus, Aries, Diamond, Paris |
| Poland | 18 | April | Apoloniusz, Bogusław, Bogusława, Flawiusz, Gościsław |
 Estonia | 25 | April | Markus, Margus, Margo, Marko, Marek, Mark |
| Lithuania | 29 | April | Augustinas, Indre, Rita, Tarmantas |
| Poland | 29 | April | Angelina, Augustyn, Bogusław, Hugo, Hugon, Paulin, Piotr, Rita, Robert, Roberta, Sybilla |
| Poland | 7 | May | Benedykt, Bogumir, Domicela, Flawia, Florian, Gizela, Gustawa, Ludmiła, Ludomiła, Sawa, Wincenta |
 Spain | 7 | May | Augusto, Flavio, Gisela |
| Poland | 19 | May | Augustyn, Celestyn, Iwo, Mikołaj, Pękosław, Piotr, Potencjana |
| Austria | 27 | May | August, Bruno, Randolph |
 Croatia | 27 | May | Augustin Canterburyjski |
| France | 27 | May | Augustin |
| Lithuania | 27 | May | Augustinas, Brunonas, Leonora, Virgaudas, Zymante |
| Poland | 28 | May | Augustyn, German, Jaromir, Priam, Wiktor, Wiktoriusz, Wilhelm, Wrócimir |
| Spain | 28 | May | Agustín, Bernardo, Emilio, Germán |
| Poland | 29 | May | Bogusława, Maksymilian, Maria Magdalena, Teodor, Teodozja |
 Norway | 6 | June | Gustav, Gyda |
| Sweden | 6 | June | Gösta, Gustav |
| Latvia | 11 | June | Ingus, Mairis, Sigrida, Svens, Vidvuds |
 Bulgaria | 15 | June | Avgustin, Avgustina, Vitan, Vitomir |
| Poland | 1 | July | Aaron, Bogusław, Halina, Klarysa, Marian, Niegosława, Teobald |
| Austria | 9 | July | Augustin |
 Czechia | 2 | August | Gustav |
| Lithuania | 2 | August | Alfonsas, Guoda, Gustavas, Tautvaldas |
| Poland | 2 | August | Alfons, Alfonsyna, Borzysława, Gustaw, Ilia, Karina, Maria, Stefan |
 Slovakia | 2 | August | Gustav |
| Austria | 3 | August | August, Lydia, Nikodemus |
| Croatia | 3 | August | Bl. Augustin Kažotic, Lidija |
| Latvia | 3 | August | Augusts, Rets |
| Lithuania | 3 | August | Auguste, Lengvine, Mangirdas, Steponas |
| Poland | 3 | August | August, Augusta, Krzywosąd, Lidia, Nikodem, Symeon, Szczepan |
| Slovakia | 3 | August | Jerguš |
| Spain | 3 | August | Gustavo, Lídia |
| Lithuania | 8 | August | Daina, Domas, Dominykas, Elidijus, Gustavas, Taulgirdas |
| Latvia | 14 | August | Virma, Zelma, Zemgus |
| Poland | 18 | August | Agapit, Bogusława, Bronisław, Bronisz, Helena, Ilona, Klara, Tworzysława |
| Austria | 28 | August | Adelinde, Aline, Augustin |
| Croatia | 28 | August | Augustin, Tin, Gustav |
| Czechia | 28 | August | Augustýn |
 Denmark | 28 | August | Augustinus |
| Estonia | 28 | August | August, Gustav, Kustav, Kustas, Kusti, Kusto |
| France | 28 | August | Augustin, Elouan |
| Latvia | 28 | August | Auguste, Guste, Ranna |
| Lithuania | 28 | August | Augustinas, Patricija, Steigvile, Tarvilas |
| Norway | 28 | August | Artur, August |
| Poland | 28 | August | Adelina, Aleksander, Aleksy, Augustyn, Patrycja, Sobiesław, Stronisław |
| Slovakia | 28 | August | Augustýn |
| Spain | 28 | August | Agustín |
 Ukraine | 28 | August | August, Tymon |
| Poland | 9 | September | Augustyna, Aureliusz, Dionizy, Gorgoncjusz, Pimen, Piotr, Ścibor, Ścibora, Sergiusz, Sobiesąd |
| Poland | 23 | September | Boguchwała, Bogusław, Libert, Minodora, Tekla |
| France | 7 | October | Gustave, Serge |
| Poland | 31 | October | Alfons, Alfonsyna, Antoni, Antonina, August, Augusta, Godzimir, Godzisz, Lucylla, Łukasz, Saturnin, Saturnina, Urban, Wolfgang |
| Sweden | 6 | November | Adolf, Gustav |
| Ukraine | 23 | November | Augusta, Augustina |
| USA | 27 | November | Fergus, Farrel, Farrell, Ferrell, Ginger, Virgil, Virgilia, Virginia |
| Hungary | 18 | December | Auguszta |
| Poland | 18 | December | Bogusław, Gracjan, Gracjana, Laurencja, Wilibald, Wszemir |
