Alda Heaton Wilson (1873-1960) was an architect and civil engineer from Iowa. She and her sister Elmina were the first American women to practice civil engineering after obtaining a four year degree. She worked as a freelance architect in Illinois, Iowa and Missouri before moving to New York and working there for over a decade. She was the first woman supervisor of the women's drafting department of the Iowa Highway Commission. In her later career, she curtailed her architectural works, becoming the secretary, housemate and traveling companion of Carrie Chapman Catt.