Aquilinus is a Roman cognomen, derived from the Latin word aquila, "eagle," with the meaning of "eagle-like." It can refer to:
People
- Gaius Vettius Aquilinus Juvencus
- Aquilinus, villainous Pagan military man confronted by Pancras of Taormina
Saints
- Aquilinus, Geminus, Gelasius, Magnus and Donatus (d. 3rd century). Martyrs in Forum Sempronii (Fossombrone). Feast day: February 4
- Aquilinus (d. 484), martyred by Hunneric. Killed with Geminus, Eugene, Marcian, Quintus, Theodotus, and Tryphon. Feast day: January 4.
- Aquilinus of Milan (Aquilinus of Cologne) (d. 650 or 1015). Feast day: January 29.
- Aquilinus of Evreux. Feast day: October 19. R. 673-695
Churchmen
- Aquilinus, bishop of Cologne (see List of bishops and archbishops of Cologne)
- A bishop of Vic