From Aramaic 'Kepha' meaning rock or stone; the name Jesus gave to the apostle Peter.
Cephas is an Aramaic name meaning "rock" or "stone," and it carries one of the most dramatic naming moments in Western religious history. In the Gospel of John, Jesus looks at Simon bar Jonah and declares, "You will be called Cephas" — the Aramaic equivalent of the Greek Petros, giving the world both the name Peter and this older, less-traveled twin. Paul of Tarsus uses Cephas consistently in his epistles, particularly in Galatians and 1 Corinthians, suggesting the Aramaic form remained in active use among early Jewish-Christian communities long after Greek became the dominant tongue of the Church.
The name never achieved the widespread adoption of Peter despite sharing an identical meaning. Its rarity is part of its mystique — Cephas reads as the scholar's Peter, the theologian's choice, evoking the dusty seminaries and commentaries where Greek and Aramaic texts are weighed side by side. It appeared occasionally in early Christian communities in the Middle East and among Syriac Christians, where Aramaic liturgical traditions persisted for centuries.
In modern usage, Cephas remains genuinely uncommon, lending it a distinguished gravity. It has seen modest interest in communities with strong biblical literacy — Evangelical, Reformed, and Catholic families drawn to scriptural depth over popular appeal. The name ages remarkably well: it sounds ancient without feeling archaic, carries undeniable spiritual weight, and rewards the curiosity of anyone who asks where it comes from.