Catholic vs. Christian: What's the Difference?

Understanding what makes Catholicism unique among Christian traditions

"Are Catholics Christian?" is one of the most commonly asked questions about the Catholic faith. The short answer is yes — Catholics are Christian. In fact, the Catholic Church is the oldest and largest Christian church in the world, with over 1.3 billion members. But there are meaningful differences between Catholicism and Protestant Christianity that are worth understanding. This guide explains those differences clearly and charitably.

Catholics Are Christian

Christianity is the broad term for all who follow Jesus Christ and believe in His death and resurrection for the salvation of humanity. Within Christianity, there are three major branches: Catholic, Orthodox, and Protestant. Catholicism traces its history directly to Jesus Christ and the apostle Peter, whom Catholics consider the first pope. For the first 1,000 years of Christianity, there was essentially one Church — the Catholic Church (with the Orthodox East splitting in 1054). Protestantism began in 1517 with Martin Luther's Reformation.

So when people ask "Catholic vs. Christian," they usually mean "Catholic vs. Protestant." Both are Christian — they share core beliefs like the Trinity, the divinity of Christ, salvation through Jesus, and the authority of the Bible. The differences lie in how these beliefs are understood and practiced.

Key Differences

The Eucharist: The Central Difference

Perhaps the most profound difference is what happens during Communion. Catholics believe that during Mass, the bread and wine are transformed into the actual Body and Blood of Jesus Christ — a doctrine called transubstantiation. This isn't a metaphor. Catholics believe Christ is truly, substantially present in the Eucharist. This is why the Mass is the center of Catholic worship and why Catholics genuflect before the tabernacle where the Eucharist is stored.

Most Protestant denominations view Communion as symbolic — a memorial of the Last Supper that reminds us of Christ's sacrifice, but where the bread and wine (or grape juice) remain bread and wine. Some traditions, like Lutheranism, hold a middle position (Christ is present "in, with, and under" the bread and wine).

This is why Eucharistic Adoration — spending time in prayer before the exposed Eucharist — is a uniquely Catholic practice. If the Eucharist is truly Jesus, then adoring it makes perfect sense.

Why Do Catholics Pray to Saints?

This is one of the most misunderstood Catholic practices. Catholics do not worship saints — worship is for God alone. What Catholics do is ask saints to pray for them, just as you might ask a friend or family member to pray for you. The difference is that saints are in heaven with God, so their prayers are especially powerful.

Catholics honor the Virgin Mary above all saints because she is the Mother of God — she said "yes" to bearing Jesus. Catholics pray the Hail Mary, which is largely taken from Scripture (Luke 1:28 and 1:42), asking Mary to "pray for us sinners, now and at the hour of our death." Learn more in our Guide to Praying the Rosary.

The Seven Sacraments

Catholics celebrate seven sacraments — sacred rites instituted by Christ that convey God's grace:

1. Baptism — Entrance into the Christian life, forgiveness of original sin
2. Confirmation — Strengthening by the Holy Spirit
3. Eucharist — Receiving the Body and Blood of Christ at Mass
4. Reconciliation (Confession) — Forgiveness of sins through a priest. Read our confession guide.
5. Anointing of the Sick — Healing and comfort for the seriously ill
6. Holy Orders — Ordination of deacons, priests, and bishops
7. Matrimony — The sacrament of marriage

Most Protestant denominations recognize only Baptism and Communion (Lord's Supper) as sacraments or ordinances.

Do Catholics Read the Bible?

Absolutely — and more than many people realize. At every Mass, Catholics hear three Scripture readings plus a Psalm. Over a three-year cycle, the Sunday Mass readings cover a huge portion of the Bible. Daily Mass has its own two-year reading cycle. The Catholic Bible contains 73 books — the same 66 books as the Protestant Bible, plus seven additional books (Tobit, Judith, 1 & 2 Maccabees, Wisdom, Sirach, and Baruch) that were part of the ancient Greek translation used by the early Church.

What Catholics and Protestants Share

Despite the differences, Catholics and Protestants share the most important beliefs:

• Belief in one God — Father, Son, and Holy Spirit (the Trinity)
• Jesus Christ is the Son of God, fully divine and fully human
• Jesus died on the cross for the salvation of humanity and rose from the dead
• The Bible is the inspired Word of God
• Baptism is important for the Christian life
• The call to love God and love your neighbor
• Hope in eternal life and Christ's second coming

Frequently Asked Questions