Kaj: Name day
Name Day List: Kaj
Name Day List - similar names (Kaj)
| Country | Day | Month | Names |
 Croatia | 22 | April | Soter, Kajo, Vojmil |
 Poland | 22 | April | Heliodor, Kajus, Leonia, Leonid, Łukasz, Soter, Strzeżymir, Teodor |
| Croatia | 30 | June | Rimski prvomucenici, Kajo |
 Estonia | 5 | July | Kaja, Kajar |
 Sweden | 2 | August | Kajsa, Karin |
| Croatia | 7 | August | Siksto II. p., Kajetan, Albert, Donat b. |
 Lithuania | 7 | August | Drasutis, Jogile, Kajetonas, Klaudija, Sikstas |
| Poland | 7 | August | Albert, Alberta, Albertyna, Anna, Dobiemir, Donat, Donata, Doris, Dorota, Kajetan |
Austria