Family name Klouba (Klouba 
) , worldwide, is a very rare surname. The cognomen Klouba is habitual in Czechia, where it is a rare surname, Brazil, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Klouba | Brazil, Czechia, United States |
| františek klouba (b. 1922) |
|