Italian restaurant Trattoria Toscana at Newlands Drive in Cusworth was handed a one-out-of-five rating after assessment on March 8.
And Pizza Max, a takeaway at Adwick Road in Mexborough was also given a score of one on the same day.
The food hygiene rating reflects the standards of food hygiene found on the date of the inspection by the local authority. The rating is not a guide to food quality.