Harriet Joy Billingsley (1915 - ?) was an illustrator and resident of Vashon, Washington, a picturesque island in Puget Sound. Her only known published work was a pictorial map of Vashon and Maury Islands, produced in several editions in the 1950s. She was born in Butte, Montana, but her family appears to have relocated to the Seattle area during her childhood. Her father was a geologist, which may have sparked her interest in geography and maps.