Piotr’s name day is celebrated many times throughout the calendar year in Poland. These dates commence early in January, including the 3rd, 18th, 28th, and 31st. Celebrations continue into February, March, April, May, and June, highlighting significant days like the 29th of June. The observance extends through the summer and autumn months, with further dates in August, September, October, and November. The final name day recorded for Piotr in Poland falls on December 25th, concluding the year’s extensive celebrations.
Piotr is the definitive Polish form of the classical masculine name Peter, tracing its lineage back to the Greek word meaning "stone" or "rock." In the United States, its presence is usually an indication of Slavic heritage, often used within Polish-American communities where it provides a distinct cultural marker. The name conveys a rugged and dependable mood, suggesting seriousness and traditional strength. Historically, this spelling retains linguistic purity, differentiating it from its anglicized counterparts. Piotr is strictly identified worldwide as a male given name, cementing its role as a sturdy and classic choice.
| Country | Day | Month | Names |
 Poland | 3 | January | Arletta, Dan, Danisz, Danuta, Enoch, Genowefa, Piotr, Włościsława |
| Poland | 18 | January | Bogumił, Jaropełk, Krystyna, Liberata, Małgorzata, Piotr, Pryska |
| Poland | 28 | January | Agnieszka, Augustyn, Flawian, Ildefons, Julian, Karol, Leonidas, Piotr, Radomir, Roger, Waleriusz |
| Poland | 31 | January | Cyrus, Euzebiusz, Jan, Ksawery, Ludwik, Marceli, Marcelin, Marcelina, Piotr, Spycigniew, Wirgiliusz |
| Poland | 5 | February | Adelajda, Aga, Agata, Albin, Izydor, Jakub, Jan, Justynian, Paweł, Piotr, Strzeżysława |
| Poland | 8 | February | Gniewomir, Gniewosz, Honorat, Jan, Ksenofont, Lucjusz, Paweł, Piotr, Salomon, Sebastian, Żaklina |
| Poland | 22 | February | Małgorzata, Nikifor, Piotr, Wiktor, Wiktoriusz, Wrócisław |
| Poland | 23 | February | Bądzimir, Damian, Florentyn, Łazarz, Piotr, Roma, Romana, Seweryn |
| Poland | 24 | February | Bogurad, Bogusz, Boguta, Bohusz, Lucjusz, Maciej, Piotr |
| Poland | 1 | March | Albin, Antoni, Antonina, Budzisław, Budzisz, Eudokia, Eudoksja, Ewdokia, Feliks, Herakles, Herkules, Jewdocha, Joanna, Józef, Nikifor, Piotr |
| Poland | 2 | March | Absalon, Franciszek, Halszka, Helena, Henryk, Januaria, Krzysztof, Lew, Michał, Paweł, Piotr, Radosław, Symplicjusz |
| Poland | 23 | March | Eberhard, Feliks, Katarzyna, Kondrat, Oktawian, Pelagia, Pelagiusz, Piotr, Zbysław |
| Poland | 27 | April | Anastazy, Andrzej, Bożebor, Kanizjusz, Martyn, Piotr, Teofil, Zyta |
| Poland | 29 | April | Angelina, Augustyn, Bogusław, Hugo, Hugon, Paulin, Piotr, Rita, Robert, Roberta, Sybilla |
| Poland | 8 | May | Dezyderia, Ilza, Marek, Michał, Piotr, Stanisław |
| Poland | 13 | May | Andrzej, Aron, Ciechosław, Gloria, Magdalena, Piotr, Robert, Roberta, Serwacy |
| Poland | 19 | May | Augustyn, Celestyn, Iwo, Mikołaj, Pękosław, Piotr, Potencjana |
| Poland | 2 | June | Efrem, Erazm, Eugeniusz, Marcelin, Maria, Marianna, Mikołaj, Nicefor, Piotr, Racisław |
| Poland | 23 | June | Agrypina, Albin, Bazyli, Józef, Piotr, Prosper, Wanda, Zenon, Zenona |
| Poland | 29 | June | Benedykta, Benita, Dalebor, Paweł, Piotr |
| Poland | 2 | July | Juda, Maria, Martynian, Otto, Piotr, Urban |
| Poland | 7 | July | Antoni, Benedykt, Cyryl, Estera, Kira, Metody, Piotr, Pompejusz, Sędzisława, Wilibald |
| Poland | 12 | July | Andrzej, Euzebiusz, Feliks, Henryk, Jan Gwalbert, Paweł, Piotr, Tolimir, Weronika |
| Poland | 1 | August | Brodzisław, Justyn, Konrad, Konrada, Nadia, Piotr |
| Poland | 12 | August | Bądzisław, Hilaria, Klara, Lech, Leonida, Piotr |
| Poland | 19 | August | Bolesław, Emilia, Jan, Julian, Juliusz, Ludwik, Piotr, Sebald |
| Poland | 9 | September | Augustyna, Aureliusz, Dionizy, Gorgoncjusz, Pimen, Piotr, Ścibor, Ścibora, Sergiusz, Sobiesąd |
| Poland | 12 | September | Amadeusz, Amedeusz, Cyrus, Gwidon, Maria, Piotr, Radzimir, Sylwin |
| Poland | 25 | September | Aureli, Aurelia, Aurelian, Franciszek, Gaspar, Herkulan, Kamil, Kleofas, Kleopatra, Ładysław, Piotr, Rufus, Świętopełk, Wincenty, Władysław, Władysława, Włodzisław |
| Poland | 19 | October | Ferdynand, Fryda, Pelagia, Pelagiusz, Piotr, Siemowit, Skarbimir, Toma, Ziemowit |
| Poland | 16 | November | Aureliusz, Dionizy, Edmund, Gertruda, Leon, Marek, Maria, Niedamir, Otomar, Paweł, Piotr |
| Poland | 21 | November | Albert, Alberta, Albertyna, Janusz, Konrad, Konrada, Maria, Piotr, Regina, Rena, Rufus, Twardosław, Wiesław |
| Poland | 4 | December | Barbara, Berno, Biernat, Chrystian, Hieronim, Krystian, Piotr |
| Poland | 25 | December | Anastazja, Eugenia, Piotr, Spirydion |