| Country | Day | Month | Names |
 Latvia | 1 | September | Austrums, Ilmars, Iluta, Irisa, Verena |
| Latvia | 2 | September | Eliza, Elize, Lizete, Zete |
| Latvia | 3 | September | Bella, Berta, Klaudija, Klaudijs, Slaida |
| Latvia | 4 | September | Dzintars, Dzintra |
| Latvia | 5 | September | Klaudija, Perse, Persijs, Vaida |
| Latvia | 6 | September | Balva, Magnuss, Maigonis |
| Latvia | 7 | September | Ermins, Regina, Valdone |
| Latvia | 8 | September | Amirs, Ilga, Ilgonis, Nelda |
| Latvia | 9 | September | Bruno, Telma |
| Latvia | 10 | September | Albertine, Jausma |
| Latvia | 11 | September | Girts, Nansija, Signe, Signija |
| Latvia | 12 | September | Albins, Erna, Eva, Evita, Selga |
| Latvia | 13 | September | Iza, Izabella, Izanda, Izida |
| Latvia | 14 | September | Koknesis, Norberts, Sanda, Sanita, Santa |
| Latvia | 15 | September | Gunvaldis, Nikodems, Sandra |
| Latvia | 16 | September | Asja, Asnate |
| Latvia | 17 | September | Solvita, Vaira, Vairis, Vera |
| Latvia | 18 | September | Alinta, Elita, Gizela, Liesma |
| Latvia | 19 | September | Muntis, Varnesis, Verners |
| Latvia | 20 | September | Guntra, Marianna |
| Latvia | 21 | September | Matiss, Modris, Nara |
| Latvia | 22 | September | Maigurs, Maris, Marisa, Mariss, Morics |
| Latvia | 23 | September | Ivanda, Omula, Vanda, Veneranda |
| Latvia | 24 | September | Agris, Agrita, Knuts |
| Latvia | 25 | September | Rauls, Roderiks, Rodrigo, Vingra |
| Latvia | 26 | September | Egmonts, Gundars, Knuts, Kurts |
| Latvia | 27 | September | Adolfs, Ilgonis, Ronalds |
| Latvia | 28 | September | Gaita, Kaira, Lana, Sergejs, Svetlana |
| Latvia | 29 | September | Ivonna, Mihails, Mikelis, Mikus |
| Latvia | 30 | September | Abgara, Elma, Lamekins |
