Family name Bidea (Bidea 
) , globally, is a rare last name. The cognomen Bidea is habitual in Romania, where it is quite a rare surname, Nicaragua, where it is a rare surname, and Austria. In absolute terms, it is commonest in Romania, Spain, and Nicaragua. Much less frequently, Bidea is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bidea | Spain, Romania, Nicaragua, Philippines, Austria |