| New calendar | Monday, 18 October 2027 |
|---|---|
| Old calendar | Sunday, 31 October 2027 |
| Romanian | Monday, 18 October 2027 |
| Albanian | Monday, 18 October 2027 |
Spellings and nicknames
Lou, Louie, Loukas, Luc, Lucas, Luka, Luke, Lukka, Λουκάς
Yiorti
Yiorti
| New calendar | Monday, 18 October 2027 |
|---|---|
| Old calendar | Sunday, 31 October 2027 |
| Romanian | Monday, 18 October 2027 |
| Albanian | Monday, 18 October 2027 |
Lou, Louie, Loukas, Luc, Lucas, Luka, Luke, Lukka, Λουκάς