Marián's name day is on March 25th in Slovakia.
Marián is a name with deep roots, primarily found in Slavic cultures, stemming from Marianus, meaning "of the sea" or "belonging to Marius." It carries an elegant and gentle yet resilient tone, often associated with a sense of quiet strength. Primarily a masculine name in many European countries, it also appears as a feminine variant in some regions, adding a touch of versatile charm. The name evokes a feeling of classic European sophistication and a connection to ancient lineage. Its enduring presence speaks to a timeless, graceful appeal across generations.
| Country | Day | Month | Names |
 Spain | 17 | January | Alba, Antonio, Mariana, Mariano, Alfredo |
 Ukraine | 16 | February | Marianna, Theodore |
 Italy | 18 | February | Marianna, Severa |
 Greece | 28 | February | Marianna, Kyra |
 Bulgaria | 25 | March | Blagovest, Blagovesta, Blagoi, Blaga, Blago, Blaguna, Bonka, Boncho, Marian, Mariana, Blazhe, Evangelina, Vangel, Dobri, Dobrina, Dobrinka |
 Czechia | 25 | March | Marian |
 Sweden | 4 | April | Marianne, Marlene |
 Denmark | 16 | April | Mariane |
 Poland | 30 | April | Bartłomiej, Chwalisława, Eutropiusz, Jakub, Katarzyna, Lilla, Marian |
| Sweden | 30 | April | Mariana |
| Poland | 26 | May | Beda, Filip, Marianna, Paulina, Więcemił, Wilhelmina |
| Poland | 2 | June | Efrem, Erazm, Eugeniusz, Marcelin, Maria, Marianna, Mikołaj, Nicefor, Piotr, Racisław |
| Poland | 1 | July | Aaron, Bogusław, Halina, Klarysa, Marian, Niegosława, Teobald |
 France | 9 | July | Amandine, Hermine, Iphigénie, Marianne |
| Bulgaria | 15 | August | Mara, Marian, Mariana, Maria, Mariyan, Masha, Mika, Mira, Mario, Despina, Panaiot |
 Finland | 15 | August | Marjatta, Marja, Jaana, Marianna, Marianne, Marita, Maritta, Marjaana, Marjo, Marjukka, Marjut, Jatta, Marju |
 USA | 15 | August | Madonna, Malia, Mara, Maria, Mariah, Marian, Mariana, Maribel, Marie, Marisa, Marissa, Maritza, Marla, Mary, Maryann, Mimi, Miriam, Mitzy, Molly, Napoleon, Polly |
 Slovakia | 7 | September | Marianna |
| Czechia | 8 | September | Mariana |
 Estonia | 8 | September | Mariann, Marianna, Marianne |
 Latvia | 20 | September | Guntra, Marianna |
| Poland | 11 | October | Aldona, Brunon, Burchard, Dobromiła, Emil, Emilian, Emiliusz, Germanik, Maria, Marian, Placydia |
| Poland | 17 | October | Lucyna, Małgorzata, Marian, Sulisława, Wiktor, Wiktoriusz |
 Hungary | 1 | November | Marianna |
 Norway | 21 | November | Mariann, Marianne |
| Ukraine | 10 | December | Angeline, Marian |
