Chapel of the Holy Name of Virgin Mary, Religious chapel in Třtěno, Czech Republic.

The Chapel of the Holy Name of Virgin Mary is located in Třtěno village and features the architectural style typical of rural Bohemia, with a distinctive bell tower. The building occupies a central position and showcases the traditional construction methods of the region.

The chapel was built in 1870 at the expense of the village of Třtěno. Its dedication to the Holy Name of Mary, introduced for the whole Church by Pope Innocent XI, recalls the Battle of Vienna of 12 September 1683, when the Polish king John III Sobieski defeated the Ottoman army. The feast was moved to 12 September by Pius X's liturgical reform of 1912.

The chapel's dedication to the Holy Name of Mary was introduced for the whole Church by Pope Innocent XI. It recalls the Battle of Vienna of 12 September 1683, when the Polish king Jan III Sobieski defeated the Turkish army. The feast was originally kept in the octave of the Nativity of Mary and moved to 12 September by Pius X's liturgical reform of 1912.

The chapel stands on the village square (náves) of Třtěno, in the Chožov parish area of the Louny deanery. It is a single-nave building with a semicircular apse and a small tower, so it is seen from outside at any hour; the interior is opened for services listed in the Litoměřice diocese schedule.

The chapel's furnishings include a Rococo-framed painting of St. Wenceslas from the second half of the 18th century, older than the 1870 building itself. A Baroque painting of the Holy Family and a Neo-Baroque altar with a Marian image complete the interior.