Courtney Boyle, who is studying criminology and psychology, was at the Ariana Grande concert with her stepfather Philip Tron. The pair have not been heard from since.
Courtney is originally from Gateshead, Tyne and Wear, and works at a Greggs bakery.
Her mother Deborah Hutchinson has travelled Manchester to search for Courtney and Philip.
Leeds Beckett University said in a statement:
“The thoughts of the university community are with all those affected by yesterday's events in Manchester. In particular, we are hoping for the safe return of Courtney Boyle. Our thoughts are with her family. We urge any of our students affected to contact our student services for assistance.”