The invention provides seed and plants of corn hybrid SVSD7749 and the parent lines thereof. The invention thus relates to the plants, seeds, and tissue cultures of corn hybrid SVSD7749 and the parent lines thereof, and to methods for producing a corn plant produced by crossing such plants with themselves or with another corn plant, such as a plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of such plants, including the fruit and gametes of such plants.