Surname Palaeologus (Palaeologus 
, Палеолог 
) , in the world, is a very rare family name. The family name Palaeologus is habitual in Russia, where it is a very rare surname, Ukraine, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Palaeologus | United States |
| Палеолог | Russia, Ukraine |
Palaiologos, Paleólogo, and Paléologue
|
theodorus i palaeologus despot of Morea (b. 1355) |
|