Last name Bietola (Bietola 
, Bēta 
) , worldwide, is a very rare cognomen. The family name Bietola is habitual in Latvia, where it is a rare surname, Australia, where it is a very rare surname, and Italy. Not in comparison with a country's population, it is commonest in Italy, Australia, and Canada. Very seldom, Bietola is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bietola | Canada, Italy, India, France, Australia |
| Bēta | Latvia |