Christianity is the predominant religion in El Salvador, with Catholicism and Protestantism being its main denominations. The Catholic share of the population is on decline while Protestants are experiencing rapid growth in recent decades.

The Catholic Church in El Salvador is part of the worldwide Catholic Church, under the spiritual leadership of the Pope in Rome and the Episcopal Conference of El Salvador. There are almost 5 million Catholics in El Salvador. The country is divided into eight dioceses including one archdiocese, San Salvador. The Constitution explicitly recognizes the Catholic Church and it has legal status.