Mr Billington, 23, who was from Liverpool, was stabbed in Irving Street as he was out with school friends from Liverpool visiting one of their group who is studying in Birmingham.
Another friend, also 23, was seriously injured and yesterday remained in hospital in a critical condition.
Another man, aged 30 who was stabbed in Livery Street, and a 22-year-old woman, attacked in Hurst Street, also remain critically injured in hospital. Four others, three men and a woman were also injured.
A spokesman from Sheffield Hallam University said: "As a university community we are deeply saddened to learn that a member of our staff, Jacob Billington, was a victim of the major incident in Birmingham over the weekend.
"Jacob was a 2018 Sheffield Hallam graduate and had joined the library as a graduate intern, where his warmth and enthusiasm made him a greatly valued member of the team.
"Our thoughts and condolences are with his family, friends and colleagues at this very difficult time.
"We are providing support to those in our community who have been affected by this tragic incident."
A man was arrested on suspicion of murder and attempted murder yesterday morning from his home address in Selly Oak. Three other people, two men and a woman, were arrested from the same address on suspicion of assisting an offender.