Discover a variety of maternity dresses on sale from Old Navy. Dresses from our maternity dresses sale are so pretty that you will want to wear them all through your pregnancy and beyond. The styles in our maternity dress sale are perfect for casual to dressy occasions. A maternity dress on sale from this collection is a great choice for work because it is comfortable all day long. Find maternity dresses on sale with tank tops, gathered fronts, maxi lengths and other designer looks. Add a jacket to any of the dresses from our maternity dresses sale and enjoy the versatility of these beautiful fashions. Shop our assortment of maternity dresses on sale and enjoy the way you look.