The 15 year old attended St Bede's Catholic Church in London's Clapham Park.
The priest Father Marcus Holden asked for prayers for the family last week and the church held vigils and opportunities for members to come in and pray throughout the week after she went missing on Sunday 4th August.
They will now host a public mass on Thursday at 8pm.
In a statement, the Archdiocese said: "It is with great sadness that we received the news today of the discovery of the body of Nora Quoirin, who disappeared whilst on holiday with her family in Malaysia.
"Little can take away the desolation that is experienced at the loss of a loved one. However, at this most painful of times the Catholic community wishes to extend its prayerful support to Nora's family in heartfelt love and compassion: we walk alongside them as they grieve her loss.
"Mindful of their sadness, we also pray for the comfort of those who have been involved in the search for Nora, the parishioners of St Bede's RC Church, Clapham Park, where the family attend Mass, as well as school friends and staff.
"God is in all things and his grace is with us in all circumstances. We commend Nora to God's tender care, asking him also to pour out peace, consolation and healing on those that mourn her this day.
"We respectfully ask that the family and friends of Nora are granted privacy at this time."
Father Marcus Holden wrote: "We have been informed that Nora Quoirin's life on earth has ended.
"We now keep the repose of Nora's soul in our prayers confident that she is in the safe hands of Our Father in heaven.
"We pray also for her family at this time of profound tragedy. May she rest in peace and rise in glory."
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