Presentation of the Virgin Mary Cathedral, Eastern Orthodox cathedral in Athinagora Square, Chania, Greece

The Presentation of the Virgin Mary Cathedral is an Eastern Orthodox house of worship located in the old town area of Chania on Athinagora Square. The building is divided into three separate aisles, with the center aisle dedicated to the Virgin Mary and the side aisles honoring the Three Hierarchs and Saint Nicholas respectively.

The cathedral was built between 1850 and 1860 during Ottoman rule on a site that had hosted a small church since the 11th century. The structure experienced damage during conflict and underwent restoration work in the years that followed.

The cathedral's name, Trimartiri, comes from its three aisles: the central one for the Presentation of the Virgin, the south for the Three Hierarchs and the north for Saint Nicholas. The north aisle replaced the Dominican church of Saint Nicholas in Splantzia, which the Ottomans had turned into a mosque. An icon from the original 11th-century church is kept in the narthex.

The cathedral stands on Athinagora Square in the old town of Chania, a short walk from the Venetian harbour. The feast of the Presentation of the Virgin, on November 21, is the city's official feast day and a bank holiday since 1956, so expect crowds then. The bell in the campanile beside the main facade was given by the Tsar of Russia.

The cathedral's bell tower was donated by the Russian Tsar following restoration work after wartime damage. This gift reflects the historical connections between Russia and the Orthodox community on Crete.