The International Trust Company Building is an historic office building at 39-47 Milk Street in Boston, Massachusetts. The nine-story masonry-clad building was built in 1892–93 to a design by William Gibbons Preston, a prominent local architect. It is an early Boston example of the Beaux Arts style, and is structurally an early prototype of the use of skeleton framing. The building was designated a Boston Landmark by the Boston Landmarks Commission in 1978, and was listed on the National Register of Historic Places in 1979.