Mary Amelia Swift (September 17, 1812 – November 1, 1875) was an American teacher and textbook writer. Little is known of her early life, though she was raised in western and central Connecticut. In 1833, she became the principal of the Litchfield Female Academy, leading the school for three years. That year, noting a need to teach basic science and finding no adequate textbooks, she wrote First Lessons on Natural Philosophy–Part First. It was one of the first scientific texts written by a woman and was based on her observations of teaching needs from her classroom experience. Three years later she wrote a more advanced textbook for older children, First Lessons on Natural Philosophy–Part Second.