Blair converts to Catholicism
Blair, whose wife and children are Catholic, was received into full communion with the Catholic Church by Cardinal Cormac Muphy-O'Connor on Friday.
"I am very glad to welcome Tony Blair into the Catholic Church," Murphy-O'Connor said in a statement.
"For a long time he has been a regular worshipper at mass with his family and in recent months he has been following a programme of formation to prepare for his reception into full communion.
Blair's conversion has long been expected. He had a private meeting with Pope Benedict at the Vatican in June and has been receiving spiritual preparation for the conversion from Mark O'Toole, Murphy-O'Connor's private secretary.