Chiba Bank (Japanese ：ちばぎんこう） is a bank headquartered in Chuo-ku, Chiba Prefecture, Japan. It is also the largest local bank in Chiba Prefecture and the second largest local bank in Japan after Yokohama Bank. Chiba Bank, marked by sunflowers cultivated in Chiba Prefecture, is the designated Financial Institution Group of many autonomous bodies in Chiba Prefecture and one of the companies that make up the Nikkei average share price