Biobío

== English == === Alternative forms === Bio-Bío, Bío-Bío === Proper noun === Biobío A region in Chile. A province in Biobío region, Chile. == Spanish == === Proper noun === Biobío Biobío (a region of Chile) Biobío (a province of Chile) (historical) a province of Chile (first-level division) until 1974.