The Church of Saint James the Apostle in Owczary is a historic Roman Catholic church located in the village of Owczary, in the Masovian Voivodeship in Poland. The church was built in the 15th century and has undergone several renovations over the years, including in the 18th and 19th centuries.

The church is built in the Gothic style and features a rectangular nave, a polygonal apse, and a square tower. The exterior is adorned with a variety of Gothic and Baroque elements, including pointed arches, gargoyles, and ornate stonework. The interior of the church features vaulted ceilings and Gothic arches, as well as Baroque altars and a pulpit.

One of the most unique features of the Church of Saint James the Apostle in Owczary is the collection of historic tombstones located in the churchyard. These tombstones date back to the 15th and 16th centuries and feature intricate carvings and inscriptions in both Polish and Latin.

The Church of Saint James the Apostle in Owczary is an important cultural and historical landmark in the region, and is a popular destination for tourists and visitors to Poland.