Mother Teresa of Calcutta will be made a saint on Sept. 4.
Pope Francis made the announcement on Tuesday during a meeting with Catholic cardinals, which also saw four others approved for sainthood this year.
Approval from the pontiff marks the definitive stage in the path to sainthood for the Albanian nun, who became reputed globally for her charity work in India. Mother Teresa's canonization will come almost exactly 19 years after her death on Sept. 5, 1997, a relatively speedy sainthood for the Catholic Church.
Fr. Brian Kolodiejchuk, the postulator behind Mother Teresa's canonization case, welcomed the news on behalf of the Missionaries of Charity, the congregation founded by the nun. "With her canonization, the Church presents her as a model and intercessor of those who, like her, 'long to light the fire of love and peace throughout the world,'" he said.
"May we all continue to live and deepen our awareness of being in need of mercy and our willingness to extend mercy in our communities, in our families and in our service of the poor," Kolodiejchuk added.
The pope's final clearance for Mother Teresa's sainthood has been anticipated since his approval in December of a miracle attributed to her, through which a Brazilian man in 2008 woke from a coma after prayers to the nun.
Francis signed the canonization decree 13 years after St. John Paul II beatified Mother Teresa -- a significant step in the sainthood process -- after attributing another miracle to her intercession.
The canonization is expected to be held at the Vatican after Francis failed to respond to an invitation from the Indian bishops' conference to hold the ceremony in that country, The Times of India reported.
High-ranking members of the Missionaries of Charity will travel to Rome for the canonization, bringing a relic of Mother Teresa's blood, while the two people healed through the two miracles are also expected to attend, the newspaper said.