The recurring Final Fantasy character name that first appeared in Final Fantasy II is Cid.
Final Fantasy II introduced Cid as an airship owner who helps the heroes travel across the game’s world. He is not the same person in every installment; instead, “Cid” became a recurring name attached to inventors, engineers, pilots, scholars, and other technologically minded characters.
The tradition continued through the main series, with notable examples including Cid from Final Fantasy IV, Cid Highwind in Final Fantasy VII, Cidolfus Telamon in Final Fantasy XVI, and Doctor Cid in Final Fantasy XII. Their personalities, occupations, and relationships differ, but the shared name links them to one of the franchise’s longest-running conventions.
A common mix-up is Final Fantasy III: many players remember its Cid because he is important to the plot, but the name had already appeared in Final Fantasy II. Gilgamesh, Wedge, and Biggs are also recurring Final Fantasy names, yet none was the first recurring character name introduced in the series.