Paul A. McNally (1890–1955) was an American astronomer and a Jesuit priest.
In 1928 he became the director of the Georgetown Observatory, and he led research that was focused on solar eclipses. He was a professor of astronomy at Georgetown University, and later became Vice President at the institution. In 1946 he became the university's Dean and Regent.
The crater McNally on the Moon is named after him.