A new and distinct cultivar of Chrysanthemum plant named ‘Miora Orange’, characterized by its upright, outwardly spreading and uniformly rounded plant habit vigorous growth habit freely branching habit dense and full plant habit dark green-colored leaves uniform and freely flowering habit and relatively large decorative-type inflorescences with ray florets that are initially red in color becoming dark orange and yellow orange in color with subsequent development giving the inflorescences a bi-colored appearance.