Legio II (Latin for "Legion 2") may refer to:
Legio II Adiutrix, the Second Rescuer Legion Legio II Gallica, the Second Gallic Legion Legio II Italica, the Second Italian Legion Legio II Herculia, the Second Herculean Legion Legio II Augusta, the Second Augustan Legion Legio II Armeniaca, the Second Armenian Legion Legio II Flavia Virtutis, the Brave Second Flavian Legion Legio II Flavia Constantia, the Reliable Second Flavian Legion Legio II Traiana Fortis, the Valiant Second Trajanian Legion Legio II Isaura, the Second Isaurian Legion Legio II Parthica, the Second Parthian Legion