Chris Upton, headteacher at Tarleton Community Primary School paid tribute to the little girl.
"News of Saffie’s death in this appalling attack has come as a tremendous shock to all of us and I would like to send our deepest condolences to all of her family and friends," he said in a statement.
"The thought that anyone could go out to a concert and not come home is heartbreaking.
"Saffie was simply a beautiful little girl in every aspect of the word. She was loved by everyone and her warmth and kindness will be remembered fondly."
John Atkinson, 26, and Georgina Callander, 18, were named as two other victims killed in the attack.
23-year-old Salman Abedi was identified as the suicide bomber responsible.
This article originally appeared on New Idea