Family name Lucjan (Lucjan 
, Люциан 
, לוציאן 
) , all over the world, is a common cognomen. The last name Lucjan is habitual in Poland, where it is a common surname, and Slovenia, where it is a rare surname. Much less frequently, Lucjan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lucjan | Canada, Poland, United States, United Kingdom, Germany |
| Люциан | Belarus, Kazakhstan, Russia, Ukraine |
| לוציאן | Israel |
Loukas, Luc, Luca, Lucas, Lucian, Lucianus, Lucio, Lucious, Lucius, Lucián, Lucjusz, Luka, Lukas, Luke, Luuk, Luukas, Łucjan, Łukasz, Λουκάς, Лик, Лук, Лука, Лукас, Лукаш, Лукиан, Лукий, Лукій, Лукіян, Лусио, Луций, Луцйан, Луцян, Люк, Люсиус, Люций, Люциус, Люциуш, Люцыян, לוק, לוקאס, لوسيو, لوقا, لوك, لوكا, لوكاس, ლუკა, ルカ, ルカス, ルーカ, ルーカス, ルーク, 卢克, 卢卡, 卢卡斯, 卢西奥, 盧克, and 路克
Mr, Sokl, Sowa, Stec, Skra, Szot, Adam, Czyz, Cwik, Baba, Bodo, Boba, Buda, Bien, Bicz, Kott, Koch, Kepa, Kula, Kuta, Kita, Kies, Siek, Sito, Zur, Zak, Rj, Maj, Mrz, Sus, Sek, Bak, Bil, Kot, Koc, Kus, Kret, Kuc, Rak, Dec, Gut, Gra, Gil, Lal, Lis, Los, Jez, Ozg, Krl, and Kruk