Elo's name day is September 27 in Estonia.
Elo is a name experiencing a rise in popularity, particularly in the United States, though it remains relatively uncommon. It’s most established in Estonia and Finland, where it has a longer history of use, traditionally as a masculine name. The name’s origins are diverse, stemming from words meaning ‘oak tree’ or ‘bright, shining one’ and also linked to the Hebrew name for God. Increasingly, Elo is favored as a feminine name in many regions, showcasing a shift in gender association. It evokes a mood of calm strength and modern elegance, making it a distinctive and appealing choice. Its brevity and vowel-rich sound contribute to its contemporary feel.
| Country | Day | Month | Names |
 USA | 4 | January | Angel, Angela, Angelica, Angelina, Angeline, Angelique, Angelo, Angie, Dangelo, Deangelo, Lewis, Lou, Louie, Louis, Luis |
 Spain | 15 | January | Mauro, Raquel, Marcelo |
 Estonia | 31 | January | Meelitu, Meelit, Meelis, Meelik, Meelo, Meelu, Meeland |
| Spain | 12 | February | Modesto, Eulalia de Barcelona |
| USA | 11 | March | Alberta, Albertina, Angus, Connie, Constance, Constantine, Consuela, Consuelo, Elberta, Ramiro |
 Poland | 15 | March | Gościmir, Heloiza, Klemens, Krzysztof, Longinus, Ludwika |
| USA | 15 | March | Eloise, Lois, Louella, Louisa, Louise, Luella, Luisa, Lulu |
 Greece | 25 | March | Evaggelos, Eva, Vangelis, Lili |
 Lithuania | 2 | April | Elona, Jostautas, Jostaute, Pranas, Pranciskus |
| Spain | 5 | June | Eloisa, Marcia, Igor, Valeria, Nicanor, Doroteo, Bonifacio |
| USA | 7 | June | Keenan, Melody, Nidia, Nydia, Nylene, Whitney |
 Finland | 14 | June | Kielo, Pihla |
| USA | 27 | June | Lacey, Laci, Lacie, Lacy, Lance, Lancelot, Schuyler, Skye, Skylar, Skyle |
 Sweden | 30 | June | Elof, Leif |
| USA | 2 | July | Othello, Otis, Otto, Penelope, Penny, Petunia |
| Poland | 9 | July | Anatolia, Heloiza, Hieronim, Łucja, Lucja, Ludwika, Lukrecja, Mikołaj, Patrycjusz, Weronika, Wszebąd, Zenon, Zenona |
| Spain | 15 | July | Carmelo, Carmela, Hilario, Hilaria, Fausto |
| USA | 16 | July | Carmel, Carmela, Carmelo, Carmen, Shelby, Sherman, Sherwood |
 France | 28 | August | Augustin, Elouan |
| Greece | 1 | September | Simeon, Ourania, Penelope, Joshua, Mando, Clea, Aspasia, Antigoni, Margaret, Athina |
 Slovakia | 3 | September | Belo |
| USA | 15 | September | Delora, Delores, Dolores, Lola, Lolita |
| France | 1 | October | Ariel, Mélodie, Muriel, Thérèse |
| Estonia | 2 | October | Leelo, Leela, Leeli |
| France | 22 | October | Elodie, Salomé, Sara |
 Hungary | 22 | October | Előd |
 Austria | 30 | October | Alfons, Angelo, Dieter |
| Spain | 1 | November | Benigno, Penélope |
| Greece | 8 | November | Angela, Angelo, Stamatis, Stamos, Michael, Michelle, Metaxia, Gabriel |
| Spain | 1 | December | Adelaida, Eloy, Hugo |
 Italy | 3 | December | B. Francesco Saverio Seelos |