Susana Ferrari Billinghurst (1914–1999) was an Argentine aviator of Italian, English, and Irish descent.

In 1937, Billinghurst became the first woman in South America to earn a commercial pilot's license.

During the 1943 Revolution Day in Argentina, she entered the presidential house with a symbolic bouquet, getting from the new president a historical engagement in favour of women's rights, particularly in the aviation field.

In November 1943, she made a flight to Uruguay with two other aviators (Elida Carles and Julia Perez Cattoni), officially representing the Argentine government.

Susana was the grandmother of actress Luciana Pedraza, the wife of actor Robert Duvall.