Boris: Name day
Name Day List: Boris
| Country | Day | Month | Names |
 Austria | 2 | May | Athanasius, Boris, Siegmund |
 Bulgaria | 2 | May | Boriana, Boris, Borislav, Borislava, Boryana, Zhivko, Zhivka, Zhivodan |
 Croatia | 2 | May | Anastazije, Eugen, Boris |
 France | 2 | May | Boris, Zoé |
 Sweden | 10 | June | Boris, Svante |
 Ukraine | 24 | June | Bohuslav, Bohuslava, Boris, Boryslav, Boryslava, Slavko, Slavka, Ivan, John, Yvonna, Jean, Joan, Johanna |
 Spain | 23 | July | Brigida, Teresa, Boris |
 USA | 24 | July | Amalia, Amelia, Boris, Chris, Christa, Christen, Christian, Christiana, Christie, Christin, Christina, Christine, Christy, Chrysta, Cristina, Cristian, Declan, Kiersten, Kirsten, Kirstie, Kirstin, Krista, Kristen, Kristian, Kristi, Kristin, Kristina, Kristine, Kristy, Kristyn, Maya |
 Czechia | 5 | September | Boris |
 Slovakia | 14 | October | Boris |
Name Day List - similar names (Boris)
| Country | Day | Month | Names |
| Bulgaria | 6 | January | Bogomil, Bogdan, Bogdana, Bozhidar, Bozhidara, Borislav, Borislava, Jordan, Yordan, Yordanka, Nayden, Teodosii |
 Latvia | 20 | August | Bernhards, Bierants, Biernis, Boriss |
| Croatia | 23 | October | Ivan Kapistran, Borislav, Severin |