The Catholic Church in Lithuania is part of the worldwide Catholic Church, under the spiritual leadership of the Pope in Rome.
It is the most Catholic of all the Baltic states: there are two million Catholics, which is 79% of the total population (2002). The country is divided into eight dioceses including two archdioceses and a military ordinariate. In 2007 there were 779 Roman Catholic priests and 677 parishes. Lithuania is the northernmost predominantly Roman Catholic country in the world, being slightly farther north than the Republic of Ireland.
Roman Catholicism has been the majority denomination since the Christianization of parts of Lithuania proper in 1387 (the Highland) and in 1413 (Samogitia, the Lowland).
St. Casimir (Kazimieras, 1458–1484) is the only canonized saint of Lithuania. He is the patron of the country and Lithuanian youth. Archbishop Jurgis Matulaitis-Matulevičius (1871–1927) was beatified in 1987.
The Roman Catholic Church is an influential factor in the country, and some priests actively led the resistance against the Communist regime and, after independence was regained, in support of traditionalism, especially in ethical questions.
The nationally renowned anti-Communist resistance shrine, the Hill of Crosses, upon which thousands of Latin Rite crosses of all sizes have been placed, is located near the city of Šiauliai. Erecting Latin crosses on the hill was forbidden by the Czarist Russian Orthodox authorities in the 19th century. Later, in the 20th century, the Soviet authorities also forbade such explicit religious symbols. The crosses were removed in 1961 with tractors and bulldozers, but despite Soviet prohibitions, Catholics continued to put small crucifixes and larger crosses on the Hill of Crosses. Pope John Paul II visited the hill during his visit to Lithuania, primarily because it was a sign of anti-Communist Catholic resistance, as well as a Roman Catholic religious site. Lithuania was the only majority-Catholic Soviet republic.