Saint Joseph Cathedral (Romanian: Catedrala Sfântul Iosif) is a historical and architectural monument located in Bucharest, Romania, at 19 General Berthelot Street.

Mihail Kogălniceanu, impressed the greatness of the worship catholic have to declare in the same year from the parliament, that this cathedral was "the most beautiful religious building that exists in Romania".

Its founder is Bishop Ignatius Paoli, from the Passionist Congregation of Monks, and he was the first Archbishop of the Roman Catholic Archdiocese of Bucharest.

The money to build the cathedral came from believers in Bucharest, from various wealthy personalities, but also from foreign benefactors, acquaintances or friends of Bishop Paoli.

The stone used in construction was brought from the quarries of Ruse, Bulgaria, and bricks were purchased from Bucharest and neighboring villages.

Lack of funds and the outbreak of the Romanian War of Independence in 1877 made the work very hard to advance in stages until 1883.

On Friday, February 15, 1885, the Pontifical Mass was celebrated by Archbishop Ignatius Paoli for consecration and inauguration of Saint Joseph Cathedral.

The main altar of the cathedral was executed in Rome in white Carrara marble, by architect Friedrich Schmidt and Carol Benesch, and then mounted in Bucharest by specialist Niccolo Orassi.

Mayer Company of Munich executed original Stained glass windows, destroyed in bombing of April 4, 1944, contained the eight large paintings of the apse windows with scenes from the life of Saint Joseph and the Holy Family, the seven medallions on the walls of the central nave mosaic "Mother of God" and two angels above the outer portal of the cathedral, as well as wood carvings of the Pulpit and the Bank for Holy Communion.

Large rosette above the organ, choir and the baptistery stained glass was executed in 1985 by the artist Dorin Danila.

Saint Joseph Cathedral suffered significant damage from the earthquakes of 1929, 1940, 1977, 1986 and 1990, and also due to the American bombing of April 4, 1944 and the German August 24 to 25, 1944.

In 1986 the works were finished painting the cathedral, begun by the painter Thomas Lasconi and completed the team led by Peter Shepherd.

Transcripts of parish registers that first baptism was celebrated on February 4, 1884, and the first marriage on May 3, 1884, while still not fully completed the construction and landscaping of the building of the cathedral.

In the years 1990–1991 were established, for better and effective pastoral care for the faithful six new parishes: "Blessed Redeemer", "Sacred Heart of Jesus", "Peter and Paul", Baneasa "Assumption", "Birth of Saint John the Baptist" and "Holy Guardian Angel".