Pope Benedict XVI led Easter celebrations with Mass at the Vatican where he gave his traditional "Urbi et Orbi" blessing.
But in quake-hit L'Aquila, priests used makeshift chapels in areas devastated by Monday's earthquake.
Children evacuated from their homes in the L'Aquila area hung paintings reading "Happy Easter" at a tent city.
Catholics in South Korea attended a giant Mass on Easter Sunday.
US troop held an Easter sunrise service at the Camp Liberty military base just outside the Iraqi capital.
Roman Catholics pray next to a poster of Christ during Easter Mass in Peshawar, Pakistan.
Christians in Elbingerode, Germany, lit their traditional Easter eve bonfire on Saturday night.
But for most of the Orthodox Christian world, which follows a different calendar, Holy Week is only beginning.
In Gaza City, for example, Orthodox worshippers attended a Palm Sunday Mass.
Meanwhile in Bulgaria, Orthodox priests consecrated traditional red-dyed eggs during a service in the town of Varna.
And in New York the Armenian church released 12 doves to symbolise the apostles sent out to evangelise the world