A new and distinct cultivar of Strawberry plant named ‘；FF 1503’；, characterized by its compact, upright to semi-upright plant habit； moderately vigorous to vigorous growth habit； uniform fruit ripening； medium to large conical fruits that are glossy and orange red in color； pleasant fruit aroma and sweet taste； excellent fruit postharvest longevity； and moderate resistance to Phytophthora cactorum and Podosphaera aphanis.
