The provided text establishes the name day for Ardo as March 7 in Croatia and October 31 in Estonia.
Ardo is a masculine given name, possessing a strong, resilient mood rooted in its Germanic origin meaning “strong” or “brave.” While rarely seen in the United States, the name has an established history and current usage in Northern Europe, particularly Estonia. Its brief, punchy sound contributes to a vibe of efficiency and reliable competence. Historically linked to longer names containing the element *hardu*, Ardo functions as a concise and enduring moniker. The name is globally recognized as exclusively male, fitting its determined personality.
| Country | Day | Month | Names |
 Spain | 7 | February | Moisés, Ricardo |
 Estonia | 20 | February | Meinhard, Meino, Ardi, Hardi, Hardo, Kardo |
 Italy | 19 | March | Edoardo il martire |
| Italy | 3 | April | Riccardo |
 USA | 3 | April | Dick, Dickson, Dix, Dixie, Dixon, Doris, Ricarda, Ricardo, Rich, Richard, Richelle, Richman, Rick, Rickey, Ricky, Rosamond, Rosamund, Ryan |
| Spain | 1 | May | Berta, Tamar, Tamara, Oroncio, Andeoro, Teodardo, Paciencia |
| Italy | 5 | May | Gottardo |
| Spain | 28 | May | Agustín, Bernardo, Emilio, Germán |
 Croatia | 8 | June | Dijana, Cecilija, Medardo, Vilim |
| Italy | 8 | June | Medardo |
 Austria | 10 | June | Bardo, Diana, Heinrich, Heinz |
| Italy | 20 | August | Bernardo di Chiaravalle |
| Spain | 20 | August | Bernardo Abad |
| USA | 20 | August | Barnard, Bernard, Bernardo, Filbert, Philbert, Rey, Reyna, Reynalda, Reynaldo, Reynold |
| USA | 25 | August | Dorcas, Lanard, Lennie, Lenny, Leonard, Leonardo, Tabatha, Tabitha |
| USA | 1 | September | Debbie, Deborah, Debra, Edgar, Edgardo, Giles, Josh, Joshua, Josue, Ruth |
| Spain | 24 | September | Gerardo, Mercedes |
| Italy | 3 | October | Gerardo di Brogne |
| Italy | 13 | October | Edoardo il confessore |
| Spain | 13 | October | Eduardo |
| USA | 13 | October | Eddie, Eddy, Eduardo, Edward, Edwardine, Ned |
| USA | 16 | October | Avice, Avis, Gerar, Gerard, Gerardo, Gerrard, Hedda, Hedwig, Hedy, Heide, Heidi, Jerard, Noah, Noe |
| Spain | 25 | October | Bernardo Calvó |
 Greece | 6 | November | Leonardo |
| Italy | 6 | November | Leonardo di Noblac |
| Spain | 6 | November | Leonardo |
| Estonia | 10 | November | Martin, Mart, Mardi, Mardo, Märten, Märt |
 Poland | 21 | November | Albert, Alberta, Albertyna, Janusz, Konrad, Konrada, Maria, Piotr, Regina, Rena, Rufus, Twardosław, Wiesław |
| Croatia | 26 | November | Konrad, Leonardo, Dubravko |