| Settlement Type: | Town |
| Subdivision Type: | Country |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Pushpin Map: | Hungary |
| Pushpin Map Caption: | Location of Fertőd |
| Pushpin Mapsize: | 275px |
| Official Name: | Fertőd |
| Mapsize: | 275px |
| Subdivision Type1: | County |
| Subdivision Name1: | Győr-Moson-Sopron |
| Subdivision Type2: | District |
| Subdivision Name2: | Sopron |
| Area Total Km2: | 48.54 |
| Population Total: | 3360 |
| Population As Of: | 2015 |
| Population Density Km2: | auto |
| Population Footnotes: | [1] |
| Postal Code Type: | Postal code |
| Postal Code: | 9431 |
| Area Code Type: | Area code |
| Area Code: | (+36) 99 |
| Coordinates: | 47.6187°N 16.8814°W |
Fertőd (in Hungarian pronounced as /ˈfɛrtøːd/) is a town in the Győr-Moson-Sopron county of Hungary, not far from Austria. Fertőd was formed when the towns of Eszterháza and Süttör were unified, in 1950.
It is the location of one of Hungary's best known palaces, Eszterháza, which was built in the 1760s by Prince Prince Nikolaus I Esterházy of the influential Esterházy family.
Prince Nikolaus IV Esterházy († 1920), his wife Margit († 1910), their son Anton († 1944) and other family members are buried in the Esterházy family cemetery in Fertőd, which is located in a small park around two kilometers northeast of the Eszterháza Palace (position: 47.6356°N 16.8847°W).
Fertőd is twinned with: