Milen: Name day
Name Day List: Milen
| Country | Day | Month | Names |
 Bulgaria | 2 | March | Milen, Milena |
| Bulgaria | 8 | November | Angel, Angelina, Arhangel, Gavrail, Gavril, Emil, Emilia, Emiliana, Mihaela, Mihail, Ognyan, Ognyana, Plamen, Plamena, Rada, Radka, Radko, Rafail, Raia, Raika, Raina, Rangel, Emiliya, Emiliyana, Emiliyan, Lina, Mila, Milen, Milyo, Mihaela, Mihail, Radivoy, Radoslav, Radoslava, Radostin, Radostina, Raiko, Raycho, Rangel, Rafail, Raya, Rusi |
Name Day List - similar names (Milen)
| Country | Day | Month | Names |
 Czechia | 24 | January | Milena |
 Slovakia | 9 | April | Milena |
 Finland | 19 | May | Emilia, Emma, Mila, Milena, Amalia, Emmi, Milja, Milka, Milla, Amelia |
 Poland | 22 | July | Albin, Bolesława, Bolisława, Laurencjusz, Maria Magdalena, Milenia, Pankracy, Wawrzyniec, Więcemiła |