The Cathedral of the Transfiguration of Our Lord [1] (Lithuanian: Kristaus Atsimainymo katedra) also called Kaišiadorys Cathedral[2] is the name given to a Catholic religious building that serves as the Cathedral of Kaišiadorys,[3] a city of the European country of Lithuania,[4] and the seat of the Diocese of Kaišiadorys.

On 10 May 1936 the church was elevated to the cathedral and this time Pope Pius XI sent a gift for safekeeping.

In 1944 the cathedral was severely damaged as a result of World War II, and during the period of Soviet occupation was closed to worship and destined for another use, until 1987, when Lithuania regained its independence and religious events were reestablished.

The crypt of the cathedral contains the remains of Blessed Teofilius Matulionis, bishop of Kaišiadorys from 1943 to 1962, interred near the remains of his predecessor Juozapas Kukta.

A statue of Matulionis stands in the square before the main entrance to the cathedral.