Family name Sadeia (Sadeia 
) , in the world, is an extremely rare cognomen. The cognomen Sadeia is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Sadeia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sadeia | United Kingdom, Sudan, United States, India, France |