The flag of England is white with a red cross . The design of the flag is often called ` The Saint George Cross ' , or ` The Colors of Saint George ' . The `` Colours of Saint George '' , or St George 's Cross are a white flag with a red cross , frequently borne by entities over which he is patron ( e.g. the Republic of Genoa and then Liguria , England , Georgia , Catalonia , Aragon , etc. ) .