Enn's name day is January 19 in Estonia.
Enn is a name primarily associated with Estonia, where it’s a traditional masculine name often derived from longer ancestral names. It’s exceptionally rare in the United States and sees limited use outside of the Baltic region. The name’s origin lies in Finno-Ugric linguistic roots, reflecting Estonian naming conventions. Enn projects a mood of quiet strength and grounded confidence, suggesting a pragmatic and reliable personality. Its gender is overwhelmingly masculine, with no significant feminine usage. The name’s rarity contributes to a sense of individuality and uniqueness.
| Country | Day | Month | Names |
 Spain | 3 | January | Daniel, Genova, Genoveva, Jennifer, Florencio, Prisciliano |
 USA | 3 | January | Gaynor, Geneva, Genevieve, Guenna, Jenifer, Jenna, Jennie, Jennifer, Jenny |
| USA | 6 | January | Cheyanne, Cheyenne, Howell, Hoyle, Kahlil, Khalil, Melchior, Rowan, Talullah, Tiffani, Tiffanie, Tiffany |
 Estonia | 9 | January | Veli, Veljo, Vello, Velvo, Veigo, Veiko, Väiko, Venda, Vendo, Venno |
| USA | 17 | January | Anthony, Antoine, Antoinette, Anton, Antonia, Antonio, Antony, Antwan, Ben, Benita, Benito, Benjamin, Bennie, Benny, Toni, Tony |
 Finland | 19 | January | Heikki, Henrik, Henna, Henni, Henriikka, Henri, Henrikki |
| Estonia | 20 | January | Hendrika, Henna, Henni, Henriette, Jete |
| Finland | 23 | January | Eine, Eini, Enni, Enna |
 France | 16 | February | Julienne, Lucile, Onésime |
| USA | 1 | March | Chapman, Dina, Dinah, Glen, Glenda, Glenn, Glenna, Seth |
| USA | 21 | March | Arvin, Arwin, Bendix, Benedict, Benedicta, Bennett |
 Sweden | 22 | March | Kennet, Kent |
 Norway | 26 | March | Gabriel, Glenn |
| Sweden | 22 | April | Allan, Glenn |
| USA | 16 | May | Brand, Branden, Brandi, Brandon, Brandy, Brannon, Brant, Brenda, Brendan, Brenden, Brendon, Brenna, Brennan, Brent, Brenton |
| Norway | 22 | May | Henning, Henny |
| Sweden | 22 | May | Hemming, Henning |
| Estonia | 8 | June | Enda, Endla, Enna, Enne |
 Latvia | 15 | June | Banuta, Benno, Vilija, Zermena |
 Austria | 16 | June | Benno, Luitgard, Quirin |
 Germany | 16 | June | Benno |
| Estonia | 17 | June | Eugen, Kenno |
| Estonia | 25 | June | Linda, Lenna, Inna |
| Norway | 26 | June | Jenny, Jonny |
| USA | 2 | July | Othello, Otis, Otto, Penelope, Penny, Petunia |
| Finland | 21 | July | Jonna, Johanna, Hanna, Jenni, Hanne, Hannele, Jenna, Joanna |
| Austria | 1 | August | Alfons, Kenneth, Peter |
| Sweden | 7 | August | Denise, Dennis |
| Estonia | 15 | August | Johanna, Hanna, Jaana, Jaanika, Jana, Janika, Janne, Jenny, Nanna |
| Finland | 17 | August | Verneri, Venni |
| Estonia | 20 | August | Bernhard, Benno, Pearn, Pearu, Päärn, Pääro, Pärn, Pärno |
| USA | 25 | August | Dorcas, Lanard, Lennie, Lenny, Leonard, Leonardo, Tabatha, Tabitha |
 Hungary | 8 | September | Mária, Adrienn |
| USA | 8 | September | Adria, Adrian, Adriana, Adrianna, Adrien, Adrienne, Hadria, Hadrian, Hadrien, Joachim, Joakima, Joaquin, Joaquina |
| France | 11 | September | Adelphe, Glenn, Vinciane |
 Italy | 19 | September | Gennaro |
| USA | 26 | September | Newton, Renata, Renault, Rene, Renee, Renny |
| Estonia | 28 | September | Leonhard, Lennart, Linnart, Linnar, Lenno |
| Finland | 28 | September | Arja, Lenni, Leon |
| Sweden | 28 | September | Lennart, Leonard |
 Greece | 3 | October | Dionisios, Dennis |
 Ukraine | 3 | October | Dennis, Denise |
| Sweden | 6 | October | Jennifer, Jenny |
| USA | 9 | October | Denice, Denis, Denise, Dennis, Denny, Dion, Gunnar, Gunther, Leif |
| Norway | 11 | October | Kennet, Kent, Kevin |
| USA | 11 | October | Canice, Kambelyn, Ken, Kendall, Kendra, Kennedy, Kenneth, Kenny, Kent, Kenton, Kim, Kimball, Kimberley, Kimberly, Kimberlyn, Kimi, Tate, Tatum |
| USA | 14 | October | Calista, Dwight, Fortino, Fortuna, Glennis, Glynnis |
| Austria | 18 | October | Gwenn, Justus, Lukas |
| USA | 26 | October | Madden, Maddock, Maddox, Mahala, Mahalia, Makenna, Mckenna |
| Norway | 6 | November | Lennart, Leonard |
| Italy | 21 | November | Benedetto Menni |
| Estonia | 23 | December | Eugenia, Senna, Senni |
| Finland | 23 | December | Senni, Noel |
| France | 26 | December | Etienne |