Diabetic ketoacidosis (DKA) is a complication of diabetes mellitus especially of type 1 variety often requiring hospitalization. Herein we report 2 subjects with Acromegaly who presented with DKA as the initial manifestation. In one subject, total remission from diabetes occurred following successful resection of growth hormone secreting pituitary adenoma localized to pituitary fossa without onset of hypopituitarism. In the other subject, total remission of diabetes ensued only after administration of somatostatin (Sandostatin LAR) once a month for 6 months since a complete resection of pituitary adenoma could not be performed due to suprasellar extension and hypopituitarism requiring treatment persisted after surgery.