The Italian word Lazio descends from the Latin word Latium, the region of the Latins, Latini in the Latin language spoken by them and passed on to the Latin city-state of Ancient Rome.

Lazio's traditional club badge and symbol is the eagle, which was chosen by founding member Luigi Bigiarelli. A symbol of the Roman legions and emperor, it was chosen to represent power and victory; it also identifies the club with its origin city.