Plessis (Afrikaans: du Plessis) Plessy, and de Plessis are related surnames of French origin, may refer to:
A plessis meant a fence made of interwoven branches in Old French.
| post code | city | state | latitude | longitude |
|---|---|---|---|---|
| 51346 | Plessis | NY | 43.23358 | -95.54806 |