Family name Kielar (Kielar 
) , throughout the world, is quite a rare cognomen. The surname Kielar is characteristic of Eastern Europe, particularly Poland, where it is quite a rare surname, Czechia, and Bulgaria, where it is a rare surname. In absolute terms, it most frequently occurs in Poland, the United States, and Czechia. More prevalently, Kielar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kielar | Germany, France, United States, Czechia, Poland |
|
barbara z. kielar Polish translator and translation specialist; professor at the University of Warsaw (1930-2021), PL (b. 1930) |
|
| edward kielar PL (b. 1892) |
|
|
|
bronisław kielar PL (b. 1945) |
|
| wiesław kielar Polish writer (1919–1990), PL (b. 1919) |
|
|
| helena kielar Polish Righteous Among the Nations, PL (b. 1927) |
|
|
|
wojciech kielar Polish skydiver, PL (b. 1978) |
|
| bronislav kielar CZ (b. 1928) |
|
|
|
agata kielar-długosz PL |
|
|
bartłomiej kielar PL (b. 1981) |
|
| marzanna bogumiła kielar Polish poet, PL (b. 1963) |
|
|
| piotr kielar Polish actor, PL (b. 1968) |
|
|
| petr kielar (b. 1965) |
|
|
| magdalena kielar Polish actress, PL (b. 1979) |
|
|
| marcin kielar researcher |
|
|
| filip kielar researcher (ORCID 0000-0003-1785-3889) |
|