Catechism of the Catholic Church §2165 — excerpt
In Baptism, the Christian receives his name in the Church. Parents, godparents, and the pastor are to see that he be given a Christian name.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.