St George's Church, Portobello, is a former Church of England parish church in the City of Sheffield, England. It is now part of the University of Sheffield and is a lecture theatre and student housing. The church was declared redundant and closed in 1981. It stood unused for a number of years until the University of Sheffield acquired it and in 1994 had it converted into a lecture theatre and student accommodation. Prior to this it had been the last of the Commissioners' churches in Sheffield to retain its original form. It is a Grade II listed building.