Evi's name day is celebrated in Estonia on December 24.
The feminine name Evi functions worldwide as both a nickname and a popular standalone given name, especially strong in countries across Europe. Derived from sources meaning "life" (Hebrew) or "well-born" (Greek), it carries meanings associated with vitality and nobility. Historically, its rise reflects a modern preference for short, impactful personal names that feel both traditional and contemporary. The name projects an inherently soft and elegant mood, balancing classical tradition with modern simplicity. Evi is definitively classified as a female name across all major regions where it is used. This combination of deep meaning and concise structure contributes to its enduring international appeal.
| Country | Day | Month | Names |
 France | 3 | January | Geneviève |
 Greece | 3 | January | Genovefa, Genevieve |
 USA | 3 | January | Gaynor, Geneva, Genevieve, Guenna, Jenifer, Jenna, Jennie, Jennifer, Jenny |
| Greece | 15 | February | Efsevios |
| USA | 26 | February | Levi, Nestor, Savana, Savanna, Savannah |
| USA | 7 | March | Davon, Devan, Deven, Devin, Devon, Devonta, Devonte, Devyn, Dewey, Lothar, Luther |
 Croatia | 28 | April | Petar Chanel, Ljudevit m. Grignon |
| USA | 28 | May | Bevan, Bevis, Emil, Emiliano, Emilio, Faron, Ferrin, Ferron |
 Estonia | 2 | June | Viivia, Vivian, Viiva, Viive, Viivi, Viivika, Veevi |
| France | 3 | June | Kévin |
 Spain | 3 | June | Oliva, Kevin, Cecilio, Davino, Clotilde, Luciniano |
| USA | 3 | June | Chloe, Clotilda, Keven, Kevin, Kevina, Kevon |
 Finland | 5 | June | Sulevi |
 Austria | 6 | June | Bertrand, Kevin, Norbert |
| Finland | 29 | July | Olavi, Olli, Uolevi, Uoti, Oula |
| Estonia | 31 | July | Ave, Meevi |
| Finland | 18 | August | Leevi |
| Croatia | 25 | August | Ljudevit IX., Josip Kalasancijski, Patricija |
| USA | 26 | August | Percival, Percy, Travis, Trevis, Trevon, Trevor |
| Finland | 10 | September | Kalevi, Kaleva |
 Latvia | 12 | September | Albins, Erna, Eva, Evita, Selga |
| Finland | 16 | September | Hilla, Hellevi, Hille, Hillevi |
| Croatia | 9 | October | Ljudevit Bertran, Dionizije, Ivan Leon |
 Norway | 11 | October | Kennet, Kent, Kevin |
 Denmark | 15 | October | Hedevig |
 Sweden | 15 | October | Hedvig, Hillevi |
| Estonia | 23 | October | Liivia, Liivi, Liivika, Leevi |
| Finland | 7 | November | Kevin, Taisto, Erin |
| Latvia | 3 | December | Daile, Evija, Jogita, Raita |
| Finland | 24 | December | Aatami, Eeva, Eevi, Eveliina |
| USA | 26 | December | Esteban, Estefania, Estefany, Estevan, Stefan, Stefanie, Stephan, Stephanie, Stephany, Stephen, Steve, Steven, Stevie |