Legio I Isaura Sagittaria

Legio I Isaura Sagitaria was a pseudocomitatensis Roman legion, levied no later than under Diocletian, and possibly already present under Probus. As its name suggests, its legionaries could be used also as archers, an uncommon feature for Roman legions.

According to Notitia Dignitatum, in the beginning of the 5th century the I Isaura was under the command of the Magister Militum per Orientem, but it is possible that in the beginning it was used to defend the Isauria region, together with the II and III Isaura.