The University of Johannesburg (UJ) is a public university located in JohannesburgSouth Africa. The University of Johannesburg came into existence on 1 January 2005 as the result of a merger between the Rand Afrikaans University (RAU), the Technikon Witwatersrand (TWR) and the Soweto and East Rand campuses of Vista University.

The newly emerged institution is one of the largest comprehensive contact universities in South Africa, with nine faculties having more than 90 departments and an enrollment of approximately 48,000 students, spreading over four different campuses. The university is one of the largest residential universities in the Republic of South Africa.