| Petrova Ves | |
| Settlement Type: | Village |
| Subdivision Type: | Country |
| Subdivision Name: | Slovakia |
| Subdivision Type2: | Region |
| Subdivision Name2: | Trnava |
| Subdivision Type3: | District |
| Subdivision Name3: | Skalica |
| Pushpin Map: | Slovakia Trnava Region#Slovakia |
| Pushpin Relief: | 1 |
| Pushpin Map Caption: | Location of Petrova Ves in the Trnava Region |
| Coordinates: | 48.7208°N 17.1608°W |
| Established Title: | First mentioned |
| Established Date: | 1392 |
| Area Total Km2: | 14.62[1] |
| Area Total Sq Mi: | 5.64 |
| Elevation M: | 206[2] |
| Elevation Ft: | 676 |
| Population Total: | 1072[3] |
| Population Density Km2: | 73.66[4] |
| Population Density Sq Mi: | 28.44 |
| Postal Code Type: | Postal code |
| Postal Code: | 908 44 |
| Area Code: | +421 34 |
| Blank Name: | Car plate |
| Blank Info: | SI |
| Website: | www.petrovaves.sk |
Petrova Ves (Hungarian: Péterlak) is a village and municipality in Skalica District in the Trnava Region of western Slovakia.
In historical records the village was first mentioned in 1392. However, the village was inhabited for a long time before. Archeological studies revealed the existence of Celtic and Roman settlements, which were subsequently replaced by Slavic settlement in the 9th century. In that time, the municipality and surroundings were part of the Great Moravia. At the end of the 11th century the village became part of the Hungarian Kingdom.
The name of the village comes from Peter Varády, an important Hungarian aristocrat who came to the village in the year 1093. Therefore, the village was named Peterlak in Hungarian, Petrovilla in Latin and Petersdorf in German. Since the end of World War I, the former Czechoslovak state proclaimed the name Petrova Ves as the official name of the village.
The municipality lies at an altitude of 207 metres and covers an area of 14.631 km2. It has a population of about 1003 people.