Giorgio Cavaglieri (August 1, 1911 – May 15, 2007) was an Italian architect and a leading figure in the historic preservationist movement in New York City.
He is best known for his 1960s restoration of the Jefferson Market Library in Greenwich Village.Cavaglieri was one of the first architects to specialize in the area of historic preservation.
He coined the term "adaptive reuse" to describe his design philosophy, which balanced an appreciation of historical styles with a bold modernity and an eye toward transformation.