Simo: Name day
Name Day List: Simo
Name Day List - similar names (Simo)
| Country | Day | Month | Names |
 Hungary | 5 | January | Simon |
 Spain | 5 | January | Amada, Simón, Simona, Emiliana |
 Italy | 8 | January | Battesimo di Gesù |
| Italy | 9 | January | Massimo |
 Ukraine | 3 | February | Simon |
 Greece | 4 | February | Iasimos, Isidoros |
 Latvia | 9 | February | Apollonija, Apolonija, Gaisma, Simona |
 Austria | 18 | February | Constanze, Simon, Simone |
| Greece | 4 | March | Gerasimos |
| Italy | 30 | March | Zosimo di Siracusa |
 Lithuania | 19 | April | Aiste, Eirimas, Leonas, Leontina, Simonas |
 Bulgaria | 10 | May | Simona |
| Greece | 10 | May | Simon |
| Italy | 29 | May | Massimo di Verona |
| Bulgaria | 1 | September | Simeon, Simona, Mona, Moncho |
 USA | 27 | September | Cosima, Cosimo, Cosmo, Damian, Damiana, Damien, Damion, Damon |
| Greece | 20 | October | Artemios, Gerasimos, Diana, Kerasia |
 France | 23 | October | Jean, Simon |
| Austria | 28 | October | Simon, Thaddäus |
 Denmark | 28 | October | Judas, Simon |
 Germany | 28 | October | Simon |
| Hungary | 28 | October | Simon, Szimonetta |
| Italy | 28 | October | Simone |
| Lithuania | 28 | October | Almante, Gaudrimas, Simas, Simonas, Tadas |
 Norway | 28 | October | Simen, Simon |
| Spain | 28 | October | Judas, Simón, Tadeo |
 Sweden | 28 | October | Simon, Simone |
| USA | 28 | October | Dayanara, Eunice, Jonah, Jonas, Jude, Liberty, Simeon, Simon, Simone, Thad, Thaddea, Thaddeus |
 Slovakia | 30 | October | Simona, Šimon |
| Italy | 27 | November | Massimo |
 Czechia | 12 | December | Simona |
| Czechia | 22 | December | Šimon |
Finland