Joyce Ballantyne (April 4, 1918 – May 15, 2006) was a painter of pin-up art. She is best known as the designer of the Coppertone girl, whose swimming costume is being pulled down by a dog.

In 1945 Ballantyne began painting pin-ups for Brown & Bigelow, having been recommended by Gil Elvgren. While there, she designed direct mail pin-up brochures for the company, and was eventually given the honor of creating an Artist's Sketch Pad twelve page calendar. She often used herself as a model.

In 1954, Ballantyne painted twelve pin-ups for a calendar published by Shaw-Barton. Upon the calendar's release in 1955, demand was so great that the company reprinted it many times.

Ballantyne then went on to paint one of the most famous advertising images ever, when Coppertone suntan lotion asked her to create a billboard image in 1959. That image, of a pigtailed girl with her bathing suit being tugged down by a small dog, has become an American icon. Her daughter Cheri Brand was used as the model for the girl.