Cognomen 沛泽 (沛泽 
, Peize 
) , in all the world, is a rare family name. The surname 沛泽 is habitual in Latvia, where it is quite a rare surname, China, where it is a very rare surname, and Netherlands. Not in comparison with a country's population, it is the most numerous in China, Latvia, and Canada. More prevalently, 沛泽 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 沛泽 | China |
| Peize | Canada, United States, Netherlands, Latvia, China |