A Celtic cross is a symbol made up of a cross and a ring that surrounds the intersection. Although it has ancient, pre-Christian origins, the emblem is connected with Celtic Christianity. Crosses like these are a common sight in Celtic art. A high cross, often known as an Irish Cross, is a standing Celtic cross built of stone and frequently elaborately adorned. The early Coptic church may have been the source of Celtic crosses.
The Celtic cross is said to have been introduced by Saint Patrick or possibly Saint Declan during his time of converting the pagan Irish in Ireland.