Yiorti| New calendar | Thursday, 7 January 2027 Thursday, 24 June 2027 (smaller feast) Sunday, 29 August 2027 (smaller feast) |
|---|---|
| Old calendar | Wednesday, 20 January 2027 Wednesday, 7 July 2027 (smaller feast) Saturday, 11 September 2027 (smaller feast) |
| Armenian | Tuesday, 29 December 2026 Thursday, 14 January 2027 (smaller feast) Thursday, 27 May 2027 (smaller feast) Saturday, 16 October 2027 (smaller feast) |
| Bulgarian | Thursday, 7 January 2027 |
| Romanian | Thursday, 7 January 2027 |
| Albanian | Thursday, 7 January 2027 Sunday, 26 September 2027 (smaller feast) |
Spellings and nicknames
Giannis, Giovanni, Hanna, Hannah, Ioannis, Ionel, Ionica, Ionică, Ionita, Ioniță, Ionut, Ionuț, Ivan, Jack, Jan, Janaq, Jannis, Jean, Johana, John, Johnny, Jon, Jovan, Juan, Naqo, Nelu, Nica, Nică, Onut, Onuț, Sean, Yannis, Yiannis, Yohana, Yokaana, Γιάννης, Γιάννος, Γιαννάκης, Ιωάννης, Ванката, Ванко, Ваньо, Ганна, Иван, Иванчо, Ивчо