He said Hallowe'en celebrations "make evil look innocent", and has appealed for families to boycott the festival.
The Hallowe'en Carnival will take place on the Foyle on 30 and 31 October.
Rev Campbell said his church was opposed to Hallowe'en because it was "one of the two major days for Satanists", and "God's word clearly condemns and warns people about celebrating or glorifying Hallowe'en or the occult"....