Lari's name day is July 13 in Finland.
Lari is a name that appears occasionally in the United States while maintaining a more established presence in Finland. It is generally considered a masculine name in Northern Europe, though its simple, open phonetic structure allows it to function as a unisex name in various international contexts. Historically, it serves as a variant or shortened form of names with Latin roots linked to joy. The name is characterized by a soft, playful, and approachable mood, which gives it a minimalist and modern appeal. It is not widely popular on global charts, which contributes to its unique and distinct character for those who choose it. The name is often favored for its ease of pronunciation and its bright, energetic personality.
| Country | Day | Month | Names |
 Spain | 12 | January | Alfredo, Tatiana, Tania, Hilario |
 Austria | 13 | January | Hilarius, Hilmar, Jutta, Remigius |
 Croatia | 13 | January | Hilarije, Veselko, Radovan |
 Denmark | 13 | January | Hilarius |
 Italy | 14 | January | Leonzio, Llario di Poitiers |
 Lithuania | 14 | January | Aukse, Feliksas, Hilarijus, Laimis |
| Spain | 2 | February | Catalina, Aída, Felipe, Ayuda, Candelaria, Purificación, Néstor |
 USA | 20 | February | Aimee, Alaric, Alarica, Alarice, Aimee, Ami, Amy, Amya, Cyd, Cydney, Desmond, Sid, Sidney, Sydnee, Sydney, Ulric |
| Austria | 29 | February | Hilarius, Oswald |
| Italy | 1 | March | Ilario |
 Ukraine | 19 | March | Daria, Daryna, Darusia, Laria, Ilaria |
 France | 26 | March | Larissa |
| Ukraine | 26 | March | Ella, Gabriel, Hnat, Ignatius, Larissa |
 Romania | 28 | March | Ilarion |
 Latvia | 30 | March | Ilgmaris, Ilgmars, Larisa, Nanija |
 Russia | 7 | April | Larissa |
| Latvia | 2 | May | Laris, Sigismunds, Visvaris, Zigmunds |
 Estonia | 24 | May | Alar, Alari, Allar, Aller |
| Spain | 1 | June | Alta, Graciano, Laura, Candelaria, Gracia, Jimena, Inigo |
 Greece | 6 | June | Ilarion |
| Romania | 6 | June | Ilarion |
| Estonia | 9 | June | Haljand, Hallar, Hellar, Helar, Helari, Elar |
| USA | 13 | June | Ivey, Ivy, Lara, Larissa |
| Romania | 12 | July | Ilarie, Paisie, Proclu, Prodromita, Veronica |
| Spain | 15 | July | Carmelo, Carmela, Hilario, Hilaria, Fausto |
| Croatia | 12 | August | Anicet, Hilarija |
| France | 12 | August | Clarisse |
| Latvia | 12 | August | Anisa, Klara, Klarisa, Vizma |
 Poland | 12 | August | Bądzisław, Hilaria, Klara, Lech, Leonida, Piotr |
| USA | 12 | August | Clair, Claire, Clara, Clarabel, Clare, Clarinda, Clarissa, Murdock |
| Estonia | 1 | September | Ülo, Ülev, Ülar, Ülari, Üllar, Üllart, Üllas, Üllo |
| Croatia | 21 | October | Uršula, Hilarija |
| Ukraine | 21 | October | Ada, Ilarion, Larry |
| Lithuania | 10 | December | Eidimtas, Eularija, Ilma, Loreta |
| Latvia | 25 | December | Krists, Larisa, Stella |
Finland