Tiarnán Trainor passed away in hospital after the accident on Thursday.
Requiem Mass will take place in the Church of the Sacred Heart, Jonesborough, at 12.30pm on Tuesday.
Burial will follow in the Sacred Heart Cemetery, Dublin Road, Cloughoge.
Police said the incident involving a quad bike happened on the Low Road, Killeavy.
He was taken to the Royal Victoria Hospital in Belfast where he later died.
A death notice said he was the “loved and cherished” son of Conor and Majella Campbell, Conor’s partner Sharon and Majella’s partner Scott.
Tiarnán was also described as a “much loved brother” and “devoted grandson”.
Armagh Summer School said that Tiarnán was a regular attendee at the St Paul’s Armagh Coaching School as they posted a photo of the young boy holding the Sam Maguire Cup.
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His local school and GAA club were among the first to pay tribute to the young boy, offering support to the family and anyone affected by the tragedy.
Killeavy GAA said: “All here at Killeavy GAA are heartbroken at the tragic death of our under-14 player Tiarnán Trainor. A young life taken too soon.
“Our heartfelt condolences to his devoted parents Conor and Majella and to his loving grandparents and the extended Trainor and Campbell families.
“Our thoughts and prayers are with you all.
“Our club will be open (on Saturday) for our younger playing members to provide support and to anyone that wishes to visit. This will be communicated to you all via our club groups.
“Tiarnán, you will be so fondly remembered by us all here.”
His school, St Paul’s Bessbrook, said the community is heartbroken by the news of the death of its “esteemed pupil”.
“Tiarnán was a much loved and popular Year 10 pupil who was recently elected by his peers to serve on the Student Council. Tiarnán had an infectious personality and was well known throughout the school as a lorry fanatic,” a statement read.
“He took full part in last year’s ski trip and enjoyed a number of weeks last summer at Coláiste Mhuire Loch an Iúir in the Donegal Gaeltacht.
“The school oratory will be open tomorrow (Saturday) and on Sunday from 1pm – 4pm for any pupil and their family who wishes to come together, to remember Tiarnán and to mourn his loss together.
“Staff from the school’s care and welfare team will be present to support pupils.
“Following the return of pupils to school next week, the Education Authority’s Critical Incident Team, as well as school staff, will be available to help and support pupils at this very sad time.
“We extend our heartfelt sympathies to Tiarnán’s family, to his friends and to everyone who knew him.”
SDLP MLA Justin McNulty said the local community had been left “devastated” by the news.
Jonesborough Primary School in Newry also extended deep and sincere sympathy to the family of its past pupil Tiarnán.
“It was with deep sadness that we learned of his tragic accident,” they added.
“As a community we stand in compassion with Tiarnán’s family, understanding that words cannot soothe the heart break of loss nor grief, especially when a life ends so prematurely.
“Tiarnán was a warm, lively and spirited boy, who will be fondly remembered by all.
“May he rest in peace.”