Last name Людвик (Ludwik 
, Ludvík 
, Людвик 
, and others...) , all around the world, is a common cognomen. The last name Людвик is habitual in Poland, where it is a common surname, Armenia, where it is quite a common surname, and Czechia, where it is quite a rare surname. Much less frequently, Людвик is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ludwik | Poland, Lithuania, United States, Germany, Czechia |
| Ludvík | United Kingdom, United States, Germany, Czechia, Austria |
| Людвик | Lithuania, Kazakhstan, Armenia, Russia, Ukraine |
| Liudvikas | Lithuania, Norway, United Kingdom, United States, Albania |
| Lyudvik | Russia, United States |
Chlodwig, Clodoveo, Clovis, Clóvis, Lajos, Lazar, Lewis, Lewys, Lioudvik, Liudvik, Ljudvik, Lluis, Lluís, Loeiz, Loic, Louis, Loïc, Loïck, Ludovic, Ludovico, Ludovicus, Ludvig, Ludvik, Ludvíková, Ludwick, Ludwig, Luigi, Luis, Luiz, Luã S, Luís, Lyudvyk, Λουί, Λουδοβίκος, Кловис, Лайош, Лоик, Лудвиг, Лудвик, Луи, Луиджи, Луис, Луис, Луи, Луиш, Луіс, Луіш, Луї, Луїс, Льюис, Льюіс, Льюїс, Людвиг, Людвіг, Людвік, Людовик, Людовік, Люис, Люі, Люіс, Хлодвиг, לואיס, לואיק, לודוויג, لايوش, لودفيغ, لويجي, لويس, لويك, লুইস, ラドウィグ, ルイ, ルイジ, ルイス, ルドヴィック, 刘易斯, 路易, 路易士, and 路易斯