Biobío

Biobío or Bio-Bío (older form: Bío-Bío) may refer to any of the following:


 * Biobío River, the second longest river in Chile and the former southern frontier of the Captaincy General of Chile


 * Administrative divisions:
 * Biobío Region, eighth region of Chile (first level)
 * Biobío Province, subdivision of the Bío-Bío Region (second level)
 * Alto Biobío, commune of the Bio Bío Province (third level)