A fuel cell includes separators sandwiching electrolyte electrode assemblies. Each of the separators includes a fuel gas supply section, four first bridges extending radially outwardly from the fuel gas supply section, sandwiching sections connected to the first bridges, and flow rectifier members provided between adjacent sandwiching sections. A fuel gas supply passage extends through the center of the fuel gas supply section. Each of the sandwiching sections has a fuel gas channel and an oxygen-containing gas channel. The flow rectifier members rectify the flow of the oxygen-containing gas supplied from the oxygen-containing gas supply passage to the electrolyte electrode assemblies.