Apollodotus I Soter (Greek: Ἀπολλόδοτος Α΄ ὁ Σωτήρ; the epithet means the "Saviour"; Sanskrit: महरजस अपलदतस त्रतरस, "maharajasa apaladatasa tratarasa") was an Indo-Greek king between 180 BCE and 160 BCE or between 174 and 165 BCE (first dating Osmund Bopearachchi and R. C. Senior, second dating Boperachchi) who ruled the western and southern parts of the Indo-Greek kingdom, from Taxila in Punjab to the areas of Sindh and possibly Gujarat.