Luc's name day is observed on October 18 in France.
Luc is a sophisticated and minimalist name that is popular in French-speaking countries and maintains a steady presence globally. It originates from Latin and Greek roots associated with light and ancient regions, reflecting a deep historical background. The name is almost exclusively masculine, projecting a mood that is both intellectual and refined. Its sleek structure makes it a contemporary favorite for those seeking simplicity and strength. While it has international appeal, its identity remains firmly rooted in tradition. This name effectively bridges the gap between ancient linguistic history and modern naming trends.
| Country | Day | Month | Names |
 Croatia | 7 | January | Rajmund, Lucijan, Zorislav |
 Poland | 7 | January | Chociesław, Izydor, Julian, Lucjan, Walenty |
 Spain | 7 | January | Amadeo, Raimundo, Aquiles, Luciano |
 France | 8 | January | Lucien |
| Poland | 8 | February | Gniewomir, Gniewosz, Honorat, Jan, Ksenofont, Lucjusz, Paweł, Piotr, Salomon, Sebastian, Żaklina |
| Spain | 8 | February | Jerónimo, Lucio, Elisanda |
| Poland | 11 | February | Adolf, Adolfa, Adolfina, Alf, Bernadetta, Dezydery, Eufrozyna, Łazarz, Lucjan, Maria, Olgierd, Świętomira |
| France | 16 | February | Julienne, Lucile, Onésime |
| Spain | 18 | February | Lucio, Simeón |
| Poland | 24 | February | Bogurad, Bogusz, Boguta, Bohusz, Lucjusz, Maciej, Piotr |
| Poland | 3 | March | Asteriusz, Hieronim, Kunegunda, Lucjola, Maryna, Wierzchosława |
| Poland | 4 | March | Adrian, Adrianna, Arkadiusz, Arkady, Eugeniusz, Kazimierz, Lew, Łucja, Lucja, Lucjusz, Wacław, Wacława |
 Italy | 5 | March | Lucio I |
 Austria | 25 | March | Judith, Lucia |
| Poland | 25 | March | Dyzma, Ireneusz, Lucja, Łucja, Lutomysł, Maria, Mariola, Wieńczysław |
 Latvia | 6 | May | Didrikis, Didzis, Gaidis, Lucijs |
| Italy | 9 | May | Luca |
 Denmark | 27 | May | Lucian |
| Poland | 27 | May | Beda, Izydor, Jan, Juliusz, Lucjan, Magdalena, Radowit |
 Romania | 3 | June | Claudie, Dionisie, Ipatie, Luchilian, Paul |
| Spain | 3 | June | Oliva, Kevin, Cecilio, Davino, Clotilde, Luciniano |
| Romania | 11 | June | Luca, Pavel, Petru, Vartolomeu |
| Poland | 13 | June | Antoni, Chociemir, Herman, Lucjan, Maria Magdalena, Tobiasz |
| Poland | 25 | June | Albrecht, Eulogiusz, Łucja, Lucja, Tolisława, Wilhelm |
| Denmark | 30 | June | Lucina |
| Poland | 30 | June | Alpinian, Ciechosława, Cyryl, Emilia, Lucyna, Marcjal |
| Poland | 6 | July | Agrypina, Chociebor, Dominik, Dominika, Goar, Gotard, Lucja, Łucja, Niegosław |
| Poland | 9 | July | Anatolia, Heloiza, Hieronim, Łucja, Lucja, Ludwika, Lukrecja, Mikołaj, Patrycjusz, Weronika, Wszebąd, Zenon, Zenona |
| Poland | 29 | July | Beatrice, Beatrycze, Beatryks, Cierpisław, Faustyn, Konstantyn, Lucylla, Maria, Marta, Olaf, Serafina, Urban |
 USA | 6 | August | Adriel, Araceli, Falco, Falcon, Itzel, Lucia, Lucille, Lucine, Lucy, Luz |
| Spain | 12 | September | Dulce, María de Lluc |
| Poland | 16 | September | Antym, Cyprian, Edda, Edyta, Eufemia, Eugenia, Franciszek, Jakobina, Kamila, Kornel, Lucja, Łucja, Sebastiana, Sędzisław, Wiktor, Wiktoriusz |
| Romania | 15 | October | Luchian |
 Ukraine | 15 | October | Lucian |
| Poland | 17 | October | Lucyna, Małgorzata, Marian, Sulisława, Wiktor, Wiktoriusz |
| Denmark | 18 | October | Lucas |
 Greece | 18 | October | Loskas, Lucas, Luke |
| Italy | 18 | October | Luca |
| Romania | 18 | October | Luca |
| Spain | 18 | October | Lucas |
| USA | 18 | October | Blaine, Blair, Blane, Luca, Lucas, Lukas, Luke, Wynn, Wynton |
| Poland | 26 | October | Dymitriusz, Ewaryst, Eweryst, Łucjan, Lucyna, Ludmiła, Lutosław |
| Italy | 31 | October | Lucilla |
| Poland | 31 | October | Alfons, Alfonsyna, Antoni, Antonina, August, Augusta, Godzimir, Godzisz, Lucylla, Łukasz, Saturnin, Saturnina, Urban, Wolfgang |
| Spain | 20 | November | Félix, Lucrecia, Ocatavio |
| USA | 23 | November | Clem, Clemence, Clement, Clementina, Clementine, Crecia, Lucrecia |
| Austria | 2 | December | Bibiana, Jan, Lucius |
| Croatia | 3 | December | Franjo, Klaudije, Lucije |
| Poland | 3 | December | Franciszek, Kasjan, Ksawery, Lucjusz, Unimir |
| Romania | 11 | December | Daniil, Luca |
| Croatia | 12 | December | Lucija, Jasna, Svjetlana |
| Austria | 13 | December | Jodok, Lucia, Odilia |
 Czechia | 13 | December | Lucie |
| Denmark | 13 | December | Lucia |
 Estonia | 13 | December | Lucia, Hele, Ele, Ere, Loviise, Luise, Viise |
| France | 13 | December | Jocelyn, Lucie |
 Germany | 13 | December | Lucia |
| Greece | 13 | December | Eustratios, Stratos, Lukia, Lucy, Aris |
 Hungary | 13 | December | Luca, Otília |
| Italy | 13 | December | Lucia |
| Latvia | 13 | December | Lucija, Veldze |
 Norway | 13 | December | Lucia, Lydia |
| Poland | 13 | December | Łucja, Lucja, Otylia, Włodzisława |
 Slovakia | 13 | December | Lucia |
| Spain | 13 | December | Lucía |
 Sweden | 13 | December | Lucia |
| Ukraine | 13 | December | Louise, Lukia, Lucia |