Tautas’s name day is observed on March 15th, according to the calendar traditions followed in Lithuania.
Tautas is a distinctly masculine name originating from the Baltic linguistic tradition, predominantly associated with Lithuania. Historically, the name signifies deep societal connection and identity, imparting a mood that is serious, strong, and highly traditional. Due to its specific cultural ties, Tautas is exceedingly rare in the United States, lacking significant history or presence in American naming trends. Its scarcity means it is recognized primarily as an ethnic marker. The name avoids modern or playful connotations, projecting instead a dignified and rooted tone.
| Country | Day | Month | Names |
 Lithuania | 3 | January | Genovaite, Vida, Viltautas |
| Lithuania | 5 | January | Gaudentas, Telesforas, Vytautas, Vytaute |
| Lithuania | 1 | February | Brigyta, Eidvile, Gytautas, Ignotas |
| Lithuania | 23 | February | Butvile, Gantautas, Romana, Severinas |
| Lithuania | 2 | March | Dautara, Eitautas, Elena, Marcelinas |
| Lithuania | 7 | March | Felicita, Galminte, Rimtautas, Tomas |
| Lithuania | 21 | March | Benas, Benediktas, Lingaile, Nortautas, Reda, Saulius |
| Lithuania | 2 | April | Elona, Jostautas, Jostaute, Pranas, Pranciskus |
| Lithuania | 8 | April | Dionyzas, Girtautas, Julija, Skirgaile |
| Lithuania | 10 | April | Agna, Apolonijus, Margarita, Mintautas |
| Lithuania | 20 | April | Agne, Eisvyde, Gostautas, Marcijonas |
| Lithuania | 27 | April | Anastazas, Ausra, Gotautas, Zita |
| Lithuania | 7 | May | Butautas, Danute, Rimte, Stanislovas, Stasys |
| Lithuania | 23 | May | Gertautas, Ivona, Tautvyde |
| Lithuania | 31 | May | Anele, Angele, Gintautas, Petronele, Rimvile |
| Lithuania | 5 | June | Kantautas, Kantvyde, Marce |
| Lithuania | 7 | June | Lukrecija, Radvyle, Ratautas, Robertas |
| Lithuania | 25 | June | Baniute, Geistautas, Geistaute, Vilhelmas |
| Lithuania | 8 | July | Arnoldas, Elzbieta, Elze, Vaitautas, Valmante, Virga, Virginija |
| Lithuania | 27 | July | Natalija, Sergijus, Svalia, Zintautas |
| Lithuania | 30 | July | Abdonas, Donatile, Nortautas, Radvile |
| Lithuania | 1 | August | Almeda, Bartautas, Bartaute |
| Lithuania | 14 | August | Euzebijus, Grintautas, Guoste |
| Lithuania | 18 | August | Gendvile, Ilona, Mantautas, Sailenis, Saulene |
| Lithuania | 1 | September | Burvile, Egidijus, Gytautas, Gytis |
| Lithuania | 3 | September | Bronislova, Bronislovas, Mirga, Sirtautas |
| Lithuania | 4 | September | Gemante, Girstautas, Rozalija, Roze |
| Lithuania | 6 | September | Faustas, Tautene, Vaistautas |
| Lithuania | 8 | September | Daumante, Klementina, Liaugaudas, Vytautas |
| Lithuania | 17 | September | Pranas, Pranciskus, Sintautas, Sintaute |
| Lithuania | 4 | October | Eivyde, Mastautas, Pranas, Pranciskus |
| Lithuania | 16 | October | Ambraziejus, Dovalde, Gutautas, Jadvyga, Margarita |
| Lithuania | 17 | October | Gyte, Kintautas, Marijonas, Ritone |
| Lithuania | 7 | November | Ernestas, Gotaute, Karina, Sirtautas |
| Lithuania | 17 | November | Benedita, Getautas, Gilvile, Viktorija |
| Lithuania | 25 | November | Germile, Kotryna, Santautas |
| Lithuania | 13 | December | Eivilte, Kastautas, Kastytis, Liucija, Otilija |
| Lithuania | 24 | December | Adomas, Girstautas, Ieva, Minvyde |