Ontario has allowed Catholic and Jewish faith-based tribunals to resolve family disputes on a voluntary basis since 1991.
Mr McGuinty, who had been studying Ms Boyd's report since last December, said he was concerned religious family courts could "threaten our common ground".
He told the Canadian Press news agency: "There will be no Sharia law in Ontario. There will be no religious arbitration in Ontario. There will be one law for all Ontarians."
This is the best solution -- civil courts should determine civil rights.