Koos Degenaar, the marketing director at the Mahikeng (also called Mafikeng) campus of North-West University, said classes began again today and that the situation is calm.
Students were ordered to abandon the campus on February 25 after protesting students burned down an administration building and science centre.
Since last year, university students have protested across South Africa for causes including lower tuition and more student housing.
They have pressed for removal of campus statues from South Africa's era of white domination, changes to academic curricula and admissions policies that some student activists say are unfairly tailored for the white minority.