Also known as the Umbrella Girl, the Morton Salt Girl is a hand-drawn illustration that serves as the trademark of Morton Salt. Originally created in 1914, the Morton Salt Girl, with her yellow dress and umbrella, has become one of the ten best-known American icons. The illustration features a young girl walking in the rain with an opened umbrella and scattering table salt behind her from a blue cylindrical container. The symbol goes hand in hand with Morton's motto from 1911: "When it rains it pours".

Morton Salt created the illustration to show that its salt was free flowing even in the rain. In 1911, the company began adding magnesium carbonate as an absorbing agent to its table salt to ensure that it poured freely; calcium silicate is now used instead for the same purpose. The Morton Salt Girl has gone through seven modifications, including the latest update in 2014 for its hundredth birthday.

In 2014, the company celebrated 100 years of Morton Salt Girl with 100 parties in 100 cities. The Morton Salt Girl Centennial Scholarships was created to benefit fine arts and culinary arts students at the Art Institute of Chicago and the Kendall College School of Culinary Arts. Also in 2014, the Morton Salt Girl became the first girl icon to be inducted into the Advertising Week Walk of Fame on Madison Avenue in New York City.