SDLP councillor Brian Tierney has called on Jim McKeever to resign his seat on Derry City and Strabane District Council.
The former deputy mayor of Derry was remanded into custody last week after he was convicted by a jury of historic sex abuse against a young girl.
Despite his protestations of innocence, James McKeever - who was suspended from the SDLP when the sexual allegations came to light - was found guilty of eight offences.