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)

• Radio Bío-Bío, a Chilean radio station with a news-based output
• ST Bio Bio, an Argentinian tug

This disambiguation page lists articles about distinct geographical locations with the same name.
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