Klemens: Name day
Name Day List: Klemens
| Country | Day | Month | Names |
 Poland | 23 | January | Emerencja, Ildefons, Jan, Klemens, Maria, Rajmund, Rajmunda, Wrócisława |
| Poland | 13 | February | Benigna, Grzegorz, Jordan, Kastor, Katarzyna, Klemens, Toligniew |
 Austria | 15 | March | Klemens, Clemens, Maria, Luise |
| Poland | 15 | March | Gościmir, Heloiza, Klemens, Krzysztof, Longinus, Ludwika |
| Austria | 22 | March | Klemens, Clemens, Elmar, Lea |
| Poland | 23 | November | Adela, Erast, Felicyta, Klemens, Klementyn, Orestes, Przedwoj |
 Sweden | 23 | November | Klemens |
Name Day List - similar names (Klemens)
Lithuania