Family name Eligiusz (Eligiusz 
) , globally, is quite a common surname. The cognomen Eligiusz is characteristic of Eastern Europe, particularly Poland, where it is quite a common surname. Much less frequently, Eligiusz is the forename as well as the last name.
Koc, Kowalski, Piechota, Grzegorz, Jakubiak, Jendyczowski, Natkaniec, Isbrandt, Izdebski, Mieloszyk, Borkowski, Brulinski, Bielinski, Kupisiewicz, Pietrucha, Rutkowski, Dembowski, Dabrowski, Grabowski, Jankowski, Wieczorek, Szydlowski, Kaminski, Adamczyk, Szewczyk, Sikorski, Huk, Bonk, Okon, Madej, Bryla, Kania, Rodak, Nowak, Walak, Michal, Ciesielski, Mlosek, Kisala, Ziajkiewicz, Mazurek, Stepien, Stasiak, Cichopek, Kulesza, Dmowski, Wysocki, Makowski, Kalisz, and Czerwinski