Bart's name day is August 24 in USA.
Bart is a well-established name in the United States and is particularly popular in the Netherlands and Belgium. It originated as a short form of Bartholomew, meaning son of Talmai, which links back to ancient agricultural roots. The name has a long history of use, evolving from formal religious titles into a friendly, standalone choice. Its mood is often described as playful and energetic yet sturdy and reliable, making it highly accessible. Geographically, it maintains a strong presence in Western cultures where short, punchy names are favored. Globally, it is classified as a masculine name that carries a sense of timeless simplicity.
| Country | Day | Month | Names |
 Lithuania | 10 | March | Butgaile, Emilis, Geraldas, Naubartas |
 Poland | 21 | April | Addar, Anzelm, Bartosz, Drogomił, Feliks, Irydion, Konrad, Konrada, Selma |
| Poland | 30 | April | Bartłomiej, Chwalisława, Eutropiusz, Jakub, Katarzyna, Lilla, Marian |
| Lithuania | 10 | June | Galindas, Margarita, Vingaile, Zybartas |
 Greece | 11 | June | Varnavas, Luke, Bartholomeos |
 Ukraine | 11 | June | Bartholomew |
| Poland | 5 | July | Antoni, Bartłomiej, Filomena, Jakub, Karolina, Michał, Przybywoj, Szarlota, Wilhelm |
| Poland | 26 | July | Anna, Bartolomea, Grażyna, Mirosława |
| Lithuania | 1 | August | Almeda, Bartautas, Bartaute |
 Austria | 24 | August | Bartholomäus, Michaela |
 Croatia | 24 | August | Bartol, Bariša, Zlata |
 Czechia | 24 | August | Bartoloměj |
 Denmark | 24 | August | Bartholomæus |
 France | 24 | August | Barthélémy |
 Italy | 24 | August | Bartolomeo |
| Poland | 24 | August | Bartłomiej, Cieszymir, Jerzy, Joanna, Malina, Michalina |
 Slovakia | 24 | August | Bartolomej |
 Spain | 24 | August | Bartolomé |
 Sweden | 24 | August | Bartolomeus |
| Greece | 25 | August | Bartholomeos, Titos |
 Romania | 25 | August | Bartolomeu |
| Poland | 3 | September | Antoni, Bartłomiej, Bazylissa, Bronisław, Bronisz, Erazma, Eufemia, Eufrozyna, Izabela, Jan, Joachim, Joachima, Manswet, Mojmir, Szymon, Wincenty, Zenon, Zenona |
 USA | 6 | September | Bartram, Bertram, Nasir, Veda, Yahir |
| Lithuania | 7 | September | Bartas, Barte, Palmira, Regina |
| Lithuania | 18 | October | Kesmina, Liubartas, Lukas |
| USA | 3 | November | Hobart, Hubert, Huberta, Malachi, Silvia, Sylvia, Winfred, Winifred, Winnie |
| Lithuania | 4 | November | Eibartas, Karolis, Vaidmina |
| Poland | 11 | November | Anastazja, Bartłomiej, Maciej, Marcin, Prot, Spycisław, Teodor |
| Lithuania | 21 | November | Alberta, Eibarte, Gomantas, Honorijus |
| Lithuania | 23 | November | Adele, Doviltas, Klemensas, Liubarte |
| Lithuania | 24 | November | Gerardas, Mantvinas, Zybarte |