Ibas of Edessa, Syrian bishop
Ibas (Classical Syriac: ܗܝܒܐ ܐܘܪܗܝܐ, Ihiba or Hiba; d. October 28, 457) was bishop of Edessa (c. 435–457) and was born in Syria. His name is the Syriac equivalent of "Donatus". He is frequently associated with the growth of Nestorianism, although this assertion is contentious and has been opposed.