Family name Kadłubek (Kadłubek 
) , around the world, is a rare last name. The cognomen Kadłubek is habitual in Poland, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kadłubek | Poland, United States |
|
wincenty kadłubek Polish bishop, PL (b. 1150) |
|
|
zbigniew kadłubek PL (b. 1970) |
|