Gus's name day is August 28 in the USA.
Gus is a friendly and approachable name, often carrying a warm and down-to-earth mood. Originating as a shortened form of names like Augustus or Angus, it has roots in Latin and Gaelic. This straightforward moniker feels generally strong yet approachable, making it suitable for individuals of any gender, though more commonly masculine. The name evokes a sense of reliability and a touch of old-fashioned charm.
| 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 |
