Philinus of Acragas was a Greek historian of the 3rd century BCE from the Sicilian city of Acragas, modern Agrigento. He is known solely for writing a history of the First Punic War. His origin placed him in a central theater of that conflict, and his historical perspective is characterized as pro-Carthaginian.

His only known work is a history of the First Punic War. The text is lost, surviving only in fragments and through the criticism of later historians, most notably Polybius.

Philinus’s significance derives from his role as a source and counterpoint for Polybius. Polybius attacked his account for pro-Carthaginian bias and inaccuracy. Philinus remains important as a representative of a non-Roman perspective on the war, and his work was used by later historians like Diodorus Siculus.