| Settlement Type: | Town |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Official Name: | Ócsa |
| Subdivision Type: | Country |
| Subdivision Name: | Hungary |
| Subdivision Type1: | County |
| Subdivision Name1: | Pest |
| Subdivision Type2: | District |
| Subdivision Name2: | Gyál |
| Area Total Km2: | 81.64 |
| Population Total: | 8953 |
| Population As Of: | 2007 |
| Population Density Km2: | 108.68 |
| Postal Code Type: | Postal code |
| Postal Code: | 2364 |
| Area Code Type: | Area code |
| Area Code: | (+36) 29 |
| Pushpin Map: | Hungary |
| Pushpin Map Caption: | Location of Ócsa |
| Coordinates: | 47.2934°N 19.226°W |
Ócsa is a town in Pest county, Budapest metropolitan area, Hungary. It is situated 30 kilometers south of Budapest.
The church was originally built in the 13th century by the Premonstratensians for use as a monastery. During the 16th century the village was reformed and the structure was given to the village for use as a public place of worship.
One of the most beautiful Romanesque churches preserved in Hungary, it has 3 naves, a cross nave, and two western towers, following the style common to Hungarian medieval architecture. It was renovated in the 20th century, according to the plans of modern-day architect Ernő Foerk. The church is interesting not only for its architecture, but for the murals of Saint Ladislaus I of Hungary, the Legendary painted on the northern walls.
Numerous preserved houses and structures in the vicinity recall the life and times of the Hungarian medieval age, including tools, furniture, and other objects of interest.
A long-standing bird observatory known as the Ócsai Madárvárta is located nearby.
See also: List of twin towns and sister cities in Hungary. Ócsa is twinned with:[1]
Kose, Estonia
Plášťovce, Slovakia