The ex-Smiths guitarist has been a visiting professor at the university since 2007 and will be recognised at a ceremony at The Lowry on July 19, SalfordOnline reports.
Marr said: "I'm very pleased to be given an honorary degree by Salford University.
"I've enjoyed working with the students in my capacity as visiting professor and hopefully we can find some more opportunities for creative work in the future."
Marr formed The Smiths with Morrissey in 1982 and after their split in 1987 has been at times a member of Electronic, Modest Mouse, The The and The Cribs.
He recently revealed that while he still speaks to bassist Andy Rourke, he has no connection with Morissey or drummer Mike Joyce.