Christianity in Portugal is predominantly represented by the Roman Catholic Church, which has played a significant role in the country's history and culture. Approximately 81% of the population identifies as Catholic, and many traditional festivals and customs are rooted in Christian beliefs. The influence of Christianity is evident in Portuguese architecture, with numerous churches and cathedrals, such as the Jerónimos Monastery and the Lisbon Cathedral. Additionally, religious events, including Easter and Christmas, are widely celebrated, reflecting the deep-seated Christian traditions that continue to shape Portuguese society today.