Berto’s designated name day is celebrated on June 6th in Croatia.
Berto is a concisely masculine name stemming from ancient Germanic roots signifying "bright" or "famous," often used as a diminutive of Roberto or Alberto. Historically, its presence in the USA has been linked primarily to immigrant communities from Mediterranean and Latin cultures. This name conveys a robust and approachable mood, characterized by an informal and charismatic tone. Gender classification is strictly masculine across all global contexts. While not frequently registered as a full first name in the US, Berto carries historical depth and cultural recognition in other parts of the world. It is a choice that suggests strength and familiarity.
| Country | Day | Month | Names |
 USA | 19 | January | Bob, Bobbi, Bobbie, Bobby, Robbie, Robert, Roberta, Roberto, Robin, Robinson, Robyn |
 Spain | 23 | January | Alberto, Ildefonso, Alberta, Armando, María Paz, Xenia |
| Spain | 4 | February | Gilberto, Isidro, Verónica, Juana de Valois |
| USA | 4 | February | Byron, Gilbert, Gilberta, Gilberto, Gilmer |
 Italy | 5 | February | Gilberto Sempronio |
 Hungary | 11 | February | Bertold, Marietta |
| Italy | 25 | February | Edilberto |
| USA | 4 | March | Casimir, Humbert, Humberto, Kasimir, Kasimira, Placida, Placidia |
| Spain | 6 | March | Humberto, Olegario, Judith, Nina |
| USA | 14 | March | Adalbert, Albert, Alberto, Dalbert, Delbert, Elbert, Mathilda, Matilda, Maude, Tilda |
| Italy | 17 | March | Eriberto |
| Spain | 25 | March | Abel, Gloria, Encarnación, Rebeca, Anunciación, Maite, Humberto |
 Croatia | 29 | March | Gluha, Jona, Bertold |
 Lithuania | 29 | March | Almante, Bertoldas, Manvydas |
| Italy | 8 | April | Alberto di Gerusalemme |
| Spain | 14 | April | Lamberto |
| Spain | 23 | April | Adalberto, Jorge, Gorka |
| Italy | 13 | May | Uberto Andrea Fournet |
| Italy | 6 | June | Norberto |
| Spain | 6 | June | Norberto, Artemio, Amancio, Cándida, Ismael |
| USA | 6 | June | Dante, Donte, Delaney, Norbert, Norberta, Norberto |
| Spain | 7 | June | Roberto |
| Spain | 7 | July | Fermín, Roberto, Odón, Germano, Peregrino |
| Italy | 12 | July | Sigiberto |
| USA | 10 | August | Herb, Herbert, Herbie, Heriberto, Larry, Laura, Laurean, Laurel, Lauren, Laurence, Laurie, Lauryn, Lawrence, Lora, Loren, Lorena, Lorenzo, Loretta, Lori, Lorraine |
 Latvia | 24 | August | Bertolds, Bertrams, Berts, Bertulis, Boleslavs |
| USA | 5 | September | Bert, Bertha, Bertie, Bertin, Berton, Burt, Burton, Rigoberto |
| Italy | 17 | September | Roberto Bellarmino |
| Spain | 17 | September | Ariadna, Columba, Roberto |
| Italy | 15 | November | Alberto Magno |
| Spain | 15 | November | Alberto, Leopoldo |